Earlier quoted context omitted.
This is a strange definition of religion, to basically mean anything that isn't science. Are all aesthetics and ethics a matter of religion?
People believe it because they learn to believe it in childhood. People who don’t believe it are bad. If you even question it, people get angry and say you’re bad. People support wars against other people solely on the basis of their disagreement with it. People think we should spread it to other people. Functionally, how is that different from religion? Sure, I am using a different definition of religion because the…
I think you are doing quite the opposite, and your overexpansion of the term obfuscates things rather than clarifies them. As another user wrote, there is a perfectly good word that covers all your points: ideology.
And that way you don't get the side effect of claiming that cultural food preferences are religion, since they also can't be scientifically validated.