Because communist apologetics usually come from people who are communits, not people who think there is a healthy balance. Which is already in law. The US, just like every other healthy functioning country in the world, is socialist. They just suck at it horrendously in certain fields. The capitalist ideal is talked about, but mostly because of the innovation aspect, not the worker exploitation aspect. In fact, and especially these days, manual labor is so expensive, people are getting into DIY just to avoid it.