Because once the dictatorship of the proletariat is installed it needs to defend itself from counter revolutionaries who want to reinstate class inequality. Actually similarly to how the US and other capitalist states are heavily surveilling and infiltrating communist and other anti capitalist groups in- and outside of their own countries.

That’s actually pretty easy once capitalist USA is abolished and thus no longer violently interfering with the internal affairs of socialist countries.

Is cut ties the new corpo lingo for saying fired??

Critical statements have no meaning when they are still actively supporting the genocide with weapons. The US has the power to change the situation but they refuse to. Why? Because the white house is full of racists fucks who don’t care about Palestinians.