Tartarian theory has to be one of the dumbest conspiracy theories I've ever seen, and I've been into conspiracy shit since I was a little kid, now I'm just a skeptic, but still, the whole premise of Tartarian theory is the old "they don't make things like they used to" trope that old people commonly bemoan, while tying things together with a racist ubermensch bow as they try to tie their theory to some race of giants that no longer exist and where the knowledge of them is suppressed by the Jews oops I mean the "world order" or the "scientific community" or whatever, but really it's just a bunch of the usual antisemitic tropes to paint the Tartarian suppression as being controlled by the Jews, because who else would they blame, right?

Also since Tartary existed where Russia is now it would be pretty safe to bet the Ruskies are also pushing this garbage in their propaganda/disinformation campaigns on international conspiracy theorists, which those idiots just eat this shit up.

Here's a good write up about this stuff from Bloomberg:

https://www.bloomberg.com/news/features/2021-04-27/inside-architecture-s-wildest-conspiracy-theory

The Wikipedia section explaining it:

https://en.wikipedia.org/wiki/Tartarian_Empire#Conspiracy_theory