A lot of those demonetized YouTubers are technical ones, not political. Electronics, chemistry, software, history, etc.

The queer lefty independent webcomics scene leans on Patreon a lot too, I’m one of them.

Normally you'd think its just right wingers and yeah a lot of their garbage ends up demonetized but its also people that are pro-Union, anti-establishment (right wing and left wing), people who are anti-empire/anti-war/anti-Israel/Pro-palestine (Abby Martin for example). Craziest example I heard of recently is people who post anti-Tesla videos are getting attacked and demonetized by their fanboys.