It might be just a consequence of the fact that we all have billions of sources of information now, and we were always tribal.

And perhaps it isn't a bad thing at all. It is good to have a "control group." If everybody believed the same things, we wouldn't be exploring the edges of human knowledge as well as if we take on hypotheses, even wildly divergent ones, and try them out.

These are just my thoughts. My last sentence in my parent post was just a thought, not a conclusion.