Not quite correct. Because of how taxes work, the poorest in poverty technically got a truly free vaccine as they pay no taxes. You LIER, FAKE NEWS. 
The government exists to provide life and liberty for the people, its in the bill of rights. Your arrogance is hilarious.
You are technically correct it creates "classes" of people but no restrictions that you can easily join said "elite" class. This is akin to saying a drivers license creates a class of elitist drivers. And will cause society to fail. You do know that an actual passport creates a class of people who can travel abroad. There are hundreds of examples like these. That are perfectly accepted. Its not doomsday. You have to show your ID to buy beer, is that discrimination? No. Most discrimination is based on things a person can't change, sex, race, etc. You must be vaccinated to go to many schools, is that discrimination? No. Stop lying bro.
I am amazed that wearing a mask creates a class of people, how many classes of people exist in your life? There are millions of things that are restricted by certain circumstances and we don't all go down the slippery slope. Anyone can get a vaccine, its not restricted long term. In the end you can't preach freedom of rights and property. While also denying people said rights. Corporations are people and are entitled to their own land and property which they can implement rules. Much like your own home and car. If a company can ask you to leave if you don't wear fancy enough clothes, they can ask you to leave for not being vaccinated. This is a basic right of Americans and democracy. You can't cherry pick rights you want. You are ignoring this fundamental point. All the potential ramifications in the world shouldn't threaten the basic liberties of Americans.
You do bring an interesting point with the right to food. One could argue you have that right, because of the right to life. Hence essential businesses.
Guess I gotta take you back to school. I never said that vaccines are not free. I said you lied about a free vaccine. Which you did. I said that they are paid for by the taxpayer. Which they are. Which means that vaccines are not free because the taxpayer pays for it. What I said is absolutely true. You are arguing against something I never said nor implied. I also said citizens are free to accept it. I didn’t say only taxpayers can accept it. The vaccine that a citizen who does not pay taxes receives is not free because a taxpayer paid for it. Just because someone receives something from the government without paying taxes does not mean it is free. Someone paid for it somewhere down the line. I told the absolute truth while you, in your immature anger haze argued against something I never said. You are wrong once again. Vaccines are not free because they are paid for by the taxpayer. Welfare is not free. It is paid for by the taxpayer. Welfare is distributed to people who don’t pay taxes in the same vein that vaccines are made available to citizens that don’t pay taxes. But no matter how you want to spin and lie your way out of this, vaccines are paid for by the taxpayer. Period. You cannot argue with the truth. Do you not understand how taxes and wealth redistribution works? There is a lot you need to learn.
I am glad you agree that passports create classes of people. Because classes = discrimination. No ifs and or buts about. Because without discrimination there cannot be separate classes. Sorry, you cannot argue with that one. Once there is one company somewhere that requires you show your passport, ding ding. You have invasion of privacy that leads to discrimination. Cannot argue with that. And last I looked invasion of privacy and discrimination is not legal in our country. And if it is not legal here then passports create the ability to legally force invasion of privacy and then discrimination discriminate assuming the passports are found to be legal. Which I believe they won’t and will be fought. So your baseless claim that there are no restrictions just cannot fly. Because if there are no restrictions allowed then no passport should be issued. You are actually arguing my point for me. The only reason to have a passport is to restrict one class of people over another. Otherwise passports are meaningless and should not be issued as to create the ability of people and companies and government to discriminate against a class of people. So thank you for making my point for me. And I am glad you agree that we should not issue passports because they create classes and thus discrimination.
If you’ll recall at the beginning of the vaccine distribution, the government set up different classes of people. People who have specific jobs could get the vaccine where the rest could not. Certain age groups were told they cannot get the vaccine even if they are at risk due to other conditions when someone less than a year older without those conditions could get the vaccine. Right now no one under 16 or 18 can get the vaccine according to the nurse at my wife’s doctor today. That is discriminating by age. I’m not saying I agree or disagree with this type of discrimination as eventually it will be made available to all. The people who wear masks are allowed access to grocery stores. People who don’t are not allowed the same access. As you said, that is the prerogative of the company. It is still discrimination no matter how you look at it. But they are not allowed to request you divulge your medical condition in order to access their stores. That is invasion of privacy and that is illegal. And that is exactly what a passport is. It is a statement about your medical condition. Same for employers, the government, etc. That is invasion of privacy that is not allowed under the law. But if passports are found to be legal, then the required surrender of that passport will be deemed legal even if it violates our right to privacy. That is why passports should not be allowed as it is a pathway to discrimination by way of privacy invasion. Legal discrimination.
You cannot argue something is a right that is not stated in the constitution or Bill of Rights. You have a right to life, liberty and the pursuit of happiness. But the right to life ends when it comes to how you live your life. That is what it is all about. You can live your life any way you want. You can grow your own food. Trade it with others like how some on the Big Island live. You can live off of others or even pay someone to shop at the grocery stores for you. And you can do curbside pickup at grocery stores these days. Don’t need a mask for that. Or have groceries delivered to you house. If you want to steal food you can do that as well. If you want to buy groceries but refuse to wear a mask then you might have to live off of gas station sushi and 7-11 musubis. But above all you don’t have a right to buy groceries. Like everything else that is not a right in our country, it is a luxury and/or a privilege. Not a right even if the store is considered essential. Under your train of thought, if a grocery store is essential and citizens have the right to buy food at that grocery store, then that grocery store would not have the right to keep those who refuse to wear a mask from entering their store. That is why your right to life ends at how you decide to live your life.