You know you're in a cult when ...
... your leaders and members want to isolate you from friends, family, schools, news sources and social media platforms that might offer you facts, beliefs, ideas and opinions that do not follow the teachings of the cult. You can't easily brainwash someone unless you immerse them in ideas that are yours and yours alone.
The Democrat Party, Leftists, Socialists, Progressives, whoever else they label themselves as (they are all part of the cult) are calling for Harris voters and anyone who doesn't like Trump to leave their families. Don't live with them, don't invite them over for Thanksgiving, don't be a part of their lives. They also tell you to shave your head if you're a women if your husband or boyfriend voted for Trump, refuse to have sex with them, and even get divorced!
Not making this up. Isolating members from society is just one sign that you're part of a cult. There are others.
If you know of other signs that the Left/etc. is a cult, feel free to post them and show examples.