But apparently many people do have this "need". Why is that? Why can't more of us just accept there are some things in life we can't know for sure, and leave it at that?
This all goes back to Maslow's hierarchy of needs. When you can't self actualize you get stuck making things up and believing it.. Hence, reproducing your bogus theory to the masses.
If you don't have curiosity you won't explore So hence it takes curiosity to question and not just except like you suggest the rest of us should just do because you say so Ughhhhh