You could try talking to them instead of calling them fascists, there’s a good chance you have no idea what they actuslly believe and are filling in gaps with your own imagination.
I tried to understand why they were defending governments like in Russia, North Korea and China but got permabanned for sectarianism.
In the case of Russia, Hexbear largely hates it, they just believe it to be working against NATO. As for the DPRK and PRC, Hexbear defends AES over Capitalist countries, and that includes Anarchists.
It’s impossible to be an Anarchist and side with Western Hegemony.
You don’t need to side with any hegemony but defending countries that would and have killed anarchist movements makes you less of an anarchist than one that does defend any western power.
Ultimately advocating for anarchist ideals is more likely to work outside of authoritarian governments so I cannot understand how hexbear can defend those. But then again people vote against their interests all the time so maybe I shouldn’t be surprised.