Take, for instance, this overtly right-wing partisan here, John Stossel, also writing within the past week: https://pjmedia.com/columns/john-stossel/2020/10/07/fake-fac...
I have little traffick with John Stossel's work, and will not attest to any specific claims about wildfires, but Facebook's idea of "fact checking" this specific video involves groups like Climate Feedback, who are apparently empowered to lie about Professor Stefan Doerr of Swansea University reviewing his video.
This is not about Stossel, whose work I will not condone here. This how much you should trust Facebook to be an effective arbiter of Factual Truth, which should be very near zero. And there's a word for enforcing the "Factual Truth" like this: it's called Orthodoxy.
<3
Might as well vehemently argue that the earth is flat, if you think the Holocaust was faked.
Taking steps against that are thus justified.