Anarchism

Found some discussion on hexbear where dbzer0 was once more found to be living rent-free in their heads, but it got me thinking:

I find it telling that tankies will constantly prattle about "critical-support" of fascist chuds like Asad, and red-fash regimes like North Korea, or more often, just unironically bring up bog-standard SocDem capitalism like China as "Actually Existing Socialism" (AES), but will immediately marginalize, dehumanize or expel from their spaces anarchists who don't support AES, or who support market-based forms of socialism (such as mutualism).

Likewise, why not give "critical support" to other SocDems for their good policies? (note, I don't support socdems in either liberal-capitalist of state-capitalist form, I'm just asking questions, philosophically)

I can't quite put into words why this bothers me, but I suspect it's due to the usual hypocrisy I see from them. What do you think of this phenomenon?