The confusion comes from so much mass media that equates socialism with communism. They're orthogonal concepts! Saying socialism is the same as communism is like saying beer-making is exactly the same as cheese-making. Anyone who understands what beer and cheese are would be like, "I'm sorry, what‽"

The best way to think of socialism is that's it's a governance strategy that can be used wherever you want. Want everyone to pay taxes in order to fund and deliver government-run firefighting services? That's socialism. Want to do the same with the military? Socialism. Whenever the government is delivering some good or service by way of taxpayer dollars that's socialism.

Capitalism and communism are economic systems. You can have socialist government constructs under either capitalism or communism. It's just that communism doesn't really have the flexibility to provide goods or services in any other way than via the government.

Then there's countries like China that claim to be communist (and the Right loves to call them that) but really, they're more capitalist than communist. What they do have that most communists and fascist governments have is authoritarianism.

That authoritarianism is what fascists and "tankies" have in common: Fascists support an authoritarian, pseudo-capitalist government while "tankies" support an authoritarian, pseudo-communist government.