What do you consider "western leftism?" I was under the impression the term "tankie" refers to a subset of western leftists as well.
"Western Leftism" is more or less the leftism of the US, the UK, and of Bourgeois countries in general. Generally, it leans into libertarian ideals, the majority of Anarchist and Libertarian ideologies come from Western countries, and the majority of them refuse to accept Marxist-Leninist or non-western ideologies. The vaaaaaaaaaast majority of WL idealize anti-communist propaganda and blindly trust in authors like Orwell. They strongly fought against "Soviet Socialism", as well they're currently joining in the charge against the PRC.
that kind of implies MLs, "tankies," etc aren't Western leftists as well. separating material analysis from one's own societal conditions is more complex than just blanket-denouncing swathes of other ideological positions. I think if you live in the West and you're a leftist, that definitionally makes you a "Western leftist."
I'm a western lefist, and I completely missed the part of your argument where you say why you think we're racist. Most of the "anti-communist" ideals I have a generally anti-authoritarian. The reason I'm against the PRC is because they're a surveillance state that uses genocide a slave/near-slave labor to keep control of their population.
Methinks the word you're looking for is Liberalism. Liberals are no more fans of anything left of anarcho-capitalism, that is to say anarcho-primitives, anarcho-socialists, or even syndicalists, than they are fans of tankies, nor are China or other surviving "Eastern"/"non-Western" "Communist" states lacking for overtly Bourgeoisie elements.
The purpose of this community is sort of a "work out your frustrations by letting it all out" where different leftist tendencies can vent their frustrations with one another and more assertively and directly challenge one another. Hostility is allowed, but any racist, fascist, or reactionary crap wont be tolerated, nor will explicit threats.