I don't think communist China ever expanded. Chinese lands, such as Tibet, do not count, because they are chinese.

Soviet Union did not expand beyond the lands historically ruled by russians in any significant way. And the only time they expanded at all was the wars which they did not initiate and were not the masterminds of. And even when they did expand, they did it fair and square bringing exactly, and I mean exactly the same "welfare" they had at home to the new territories. They did not enslave, suck out the wealth and abuse those territories. In fact, many annexed territories lived better than russian.

While if you look at europeans and north americans - they have latest iphones while their unofficial colonies in south america, africa and asia - don't. And as I am aware, this is not the only advantage they have over the lands they abuse 😉.

Basically the difference is that commies are dumb and mostly honest, while democrats and socialists are mostly dumb and dishonest.