USSR refused to openly support Spanish anarchist during the Spanish civil war.

While they did help fund the Spanish republicans and sell the some arms during the war. They would not come out openly to support the left wing government.

They basically allowed the fascist nationalist Franco, supported by fascist German mercenaries, to overthrow a legally elected left wing government. Simply because the soviets knew they would benefit from not intervening in the conflict in the long run.

This is the main critique of communism from an anarchist prospective:

State communism will generally side with fascists because they have similar structure. they are both hierarchical. And will trend in the same direction. The same can be said for capitalism.

Power will always trend into the hands of the people who operate the organization and in heirarchical systems, power will always trend up to fewer and fewer people.

The anticommunists here don't care about your nuance or your support for AES states other than the USSR, they will call you a tankie if you speak in defense of any of those other projects.

Well I am not one of those people. And I'm not willing or able to defend their bs.

I call people tankies when they support communism without being able to critize it's faults.

Do you deny that there is a long history of Communists not supporting anarchists in their time of need?