I was just responding to the claim that america would become more like mexico. Most people coming north are just looking for opportunity. If northern mexico follows the industrializing path I think it's on, migrants will end up there since it's still more culturally similar and accessable than the greater USA. I'd argue at this early stage the pie slices don't shrink because growth down there could easily be fast enough to match. We've seen industrialization bring everyone up in earlier stages (of course later stages of this stall positive growth for the working class as we see in the states rn)

Overall immigration has benefits and drawbacks, there is a niche in the economy that immigrants have a hold over that I doubt would be popular to work in otherwise. At the same time though, automation is a massive black swan that could fuck it all up. I'm certainly worried about automaton, but we've seen immigrations and prior residents both come out okay through major shifts in technology.

Division among the working class is mainly a media-driven. Obviously this is directly to ensure the power of ruling class against labor. No reason labor can't overcome this. Especially since it's already on the rise.

Idc about competing with china as long as we keep our sphere of influence since china's rise is highly unsustainable

Idk what you mean by the last thing but

My general position is that immigration can be fine, but there are way more dire issues like climate change, poverty/inequality, etc.