The Congressional Budget Office just released a report stating that immigrants will add $7 trillion to the US economy by 2034, compared to how the economy would fare if immigration was choked off. Of course, anyone not blinded by race hatred knows why this is. Our population, particularly our working population, is aging. Immigrants tend to be younger than the general population. Thus, immigration helps keep the overall age of the population stable.
This is where ideology necessarily takes a back seat to practicality. Xenophobic nations, for example Japan, that once had robust economies are aging and stagnating. We, on the other hand, are doing well because immigration keeps our workforce young and fresh. It's simple demographics and economics.
Or to put it another way, we can no longer afford race hatred. It's just too costly.