Succinct, but true!
The issue here might be less about 'beliefs' but more about zealotry. No one wants to listen to someone bang on and on about the same (tedious), rigidly-held beliefs, nor be constantly patronised, nor be told on an ongoing basis that Mr 'Enlightened' is right about everything whilst they are wrong.
Upthread there are very reasonable posts about why someone would hold a religious belief. Those who quietly go about their practice and hold it as something intrinsic to them, not the subject of continual moral lectures, would be someone I could very easily live with. I fully respect the fact that since time immemorial humans have resisted the idea that we are nothing more than organic bodies - some need their spirituality in order to live, and this is perfectly undertstandable. But dinging in my ear on a daily basis the belief that I'm an evil, unrepentent sinner who is going to hell? No, thanks.
Likewise the batshit conspiracy theories (yes, they are). I'm talking here about 'the earth is flat, and if you believe otherwise then some tiny electronic flies have crawled into your earhole whilst your asleep and reprogrammed your brain). The cynic in me might well believe there's a set of less-than-orchestrated strategies to send people down these rabbit holes, so that when a 'real' (probably far less fantastical and more banal) one does happen - ie the received story of some tragic event not being the real truth of the situation. - it can be easily written off as just another bonkers conspiracy theory. (Cf. Jeffrey Epstein as opposed to Elvis, Jim Morrison, and Diana). I could much more easily accept that than the 'fact' that we're all living in a Matrix or that the earth is flat.
What you've described, OP, sounds like zealotry and possibly a symptom of a mental health crisis. It would be exhausting to live with this BS on a daily basis; I suspect I couldn't. Only you know if you can.