No, just no. You're missing the point. Poor people are poor people, some are immigrants, some are not.

Anything that benefits poor immigrants will also benefit poor citizens. Anything that enriches white nationals, will enrich the rich immigrants that can become nationals just paying money anyways.

It is your boss taking away your job and giving it to the lowest bidder. It doesn't matter who the bidder is. There will always be someone poorer than you, willing to work for less out of desperation. Sometimes they ar immigrants, sometimes they are white nationals.

Man you are fucking hella indoctrinated and spouting some of the most racist drivel I ever heard

The billionaires have you convinced. Congratulations. Now only billionaires can benefit from cheap labour. I wonder how that happened? What kind of forces would possibly make it so that only the rich would benefit? Must be the immigrants, right?

Pay and conditions were not destroyed because of immigrants, but are a side effect of globalization. Production facilities were offshored, leading to a collapse of local manufacturing and low skill jobs (where no prior education is required, low skill jobs can and sometimes do require a lot of skill). Reshoring those jobs is incredibly difficult because it also means reconfiguring the supply lines. For urban areas this is not a huge issue, as those can switch to a service based economy, but for small towns this often meant that the main economic driver of the town left and people lost jobs.

Anyway, not caused by immigration. As a matter of fact, immigrants are a significant driver of economic activity and partly offset that.

The cool part is, that's just due to extremists, not immigrants. Planned parenthoods were bombed by white right assholes. Try better next time.