Obviously these people’s interests aren’t in alignment with those of their capitalists class.

All of the time? Certainly not. Domestically? Almost entirely not.

The extraction of wealth from the Global South? 100%. The only reason what money the poorest Americans have is worth what it is is due to the plunder of the rest of the planet. The depravity poor Americans experience is nearly unique among the parasite nations, but it's really quite a lot better than what most of the world (almost all of the world outside of Europe) experiences.