You've been reading the same stuff as I have. I don't expect any of the ppl here to agree with either of us (I'm skeptic, including of accepted history). But here's a good place to look if you want a possible idea.
The First Global Nuclear War and a Coverup of historical proportions...
Basically, humans have been caught for millennia in the middle of wars between scientific elites. There's factions that want to destroy humanity (let's call them lizard people, because they seem to have no empathy) and those who typically erase history because of its ability to expose destructive tech (let's call them mystics). The problem with erasing tech is that regular ppl never really get to resolve this problem because they don't get wise to it until it happens. Like maybe replacing nukes with something defensive and nonlethal. When regular ppl get educated, they can have a say in things. However, those elites that don't want humans to destroy themselves have seen too many lynch mobs. They want humans protected from their worst tendencies. And the other group want to oppress and/or replace humans.
That's basically why you're gonna run into ppl who call you crazy. Because (1) people have heard a certain history so many times that even if you say "look, water lines" they're gonna feel like it's crazy, and (2) people actively would rather folks not explore alt history.