Religion, by definition, doesn't require proof. It's based on faith. Faith is what keeps us going through life even when things seem completely hopeless.
If you're only interested in things that have been proven by others (e.g. a court of law), aren't you going on faith that the "scientists", judges, jurists, witnesses, processes, etc. are infallible, not lying and know everything they are telling you is based on repeatable, demonstrable evidence?
When you hear the CDC doctors and Fauci tell you to do one thing, but don't offer any data to PROVE those things are the BEST methods for providing safety, aren't you going on faith? Or, did you go read all the background papers and vet the credentials of the people performing all those studies? I highly doubt most people adamant about vaccines and masks have done any personal research other than Googling a few media outlets' regurgitation of that information.
People who trust Biden and Harris to lead the country have FAITH, even in the face of overwhelming evidence that they have accomplished little in their lengthy political careers while making some monumental blunders.
Basically, anyone saying they only believe in proof, science or facts is a liar. They operate on faith all the time.
Did you go back over all the things that mechanic did to your car, or do you have faith they didn't make a mistake that can cause a crash?