It will never get to communism.

Yes and No. 2 points:

1 - Technically marxists who say "real communism has never been tried" are correct, communism is the utopian perfect state that is the end goal. By definition a utopian society is impossible. So what we have had are marxists states that are aiming to get to a communistic society. I think it's important to split the two because it highlights the religious nature of marxists. To them, communism is Heaven.

2 -

But they're just puppets, & the masters are all Neolib Democrats who are just using the far left as a tool against the Right while the lib elites run the whole show

Yes I agree, but that doesn't mean it will stay that way. Consider this, at a high level, there are roughly 2 forces that are destroying the world. Globalists and marxists. Globalists want a unified state where economic zones replace nations and they get to manage everyone lives 24/7.

Marxists want the same, except they want to destroy everything so everything is finally equal and that there are no differences between anything, we are all a grey sludge.

Currently they are working together and their goals align, but marxism, unlike globalism is a virulent ideology that subverts and takes over existing things. Globalism will probably win, but there is no defence against marxist takeover, and you can see it beginning now in some of the language that globalist organisations use. They are executing marxist plans because they think they will control it. But they are forgetting that the revolution never ends. The dialectic will always continue.

This is why thinks like Antifa and defund the police being shut down aren't the strategic victories people think they are. They are a tool that are deployed as required and put away when they are no longer useful. They still exist, ready to be redeployed. If enemy war planes drop their bombs on you and return to base you haven't "won the air war" they've just finished their sortie. Mao liquidating the red guard after they'd served their purpose didn't mean the red terror was over, it just moved to a different phase.