Well it was pretty much just openly saying it.

Her YT channel was a mix of fairly long, sort of livestream clips of development progress and notes... and then just clips of her livestreams where she wasn't really developing and was just responding to chats, going off about political topics, 'white genocide' this, 'every democrat is a f@g communist' that, a whole bunch of other dogwhistles or overt references to memes and slogans of various extremist right wing militia type groups...

Also, for clarity, I am not talking about OP's link, I'm talking about some very obscure other person I found months ago. Much , much lower view/su count, not even monetized. Also unlike OP's link, this person actually wrote code instead of just having opinions about things.

There is a difference between being on the conservative side of a culture war and being balls deep into extremist right wing ideology.