The short answer is, yes.
What do you think socialism is? "Communism with a human face."
And don't forget, German National Socialism was a Left movement that walked a nationalist walk, to get all-important support from former Army officers. The animosity between Nazis and Communists was an ideological purity contest, the political equivalent of a brother fight. That's why it was so nasty: they were competitors, not enemies.
"The short answer is, yes."
Well, alrighty then. So long as they don't kill you or inconvenience you too badly, go right ahead and be Communist or a Nazi, then. Don't expect many on FR to agree with you, though.