TONS of it. In fact, given that a tankie is by definition someone who is in favor of enforcing a system of equality by utilising oppression (the term stems from when the USSR sent tanks to stop Yugoslavia from establishing a more progressive form of communism than that of Moscow), I'd say that tankies have a 100% idiot overlap.
I'm not saying all leftist are tankies (I'm a leftist) but what I am saying is that all tankies claim to be leftist while simultaneously supporting fascist and their imperialism.