Ah the 'Immigrants do the jobs we don't want to do' meme. Not only is it inherently immoral, it's also a disgusting lie that the united big business owners made up in the 80s to break the negotiations with local blue collars. Countries that typically did not do that, ex Switzerland, have Blue Collars working 35 hours a week for 50 000$ a year at minimum, with a significantly tightened gap between blue and white collars salaries, which is normal. Those country don't even need minimum wages laws. How paradoxical that the left supported breaking the working class' salaries in favor of paying naive mexican/arabs worker a pittance instead.
'Awww what's happening? Now that the wages have been driven down the whites don't want to take on those crude jobs... This is why we need immigrants!!'
Of course that only works for first gen immigrants. Second and third gen who grow up in those countries exposed to the hollywood ideals of high powered jet7 life don't want to take on daddy's toilet cleaning job for 7.50$ per hour, neither are they adequately trained for anything else so you end up with a generation of unemployed, alienated youths of a foreign culture packed inside your cities. Woops we need new immigrants to do the shit jobs even the current immigrants don't want to do and so on and so forth. Genius plan.