Isn’t this the GamerGate guy?
https://ggwiki.deepfreeze.it/index.php/Eron_Gjoni
Unclear how "the gamergate guy" he was Vs just "accidentally triggered gamergate". I'm not going down that rabbit hole though - where's Internet Historian when you need him?
If you actually googled "Internet Historian nazi" for a guy you don't even know who he is, that would be pretty funny.
It's very obvious from his videos that he is a 4chan troll. Didn't know he was full on Nazi though.
That summary seems a bit tendencious!