I really shouldn't step into this...but...
My background is Irish-Scots-German-English-Welsh-Pawnee-Amish. I don't speak ANY of those languages properly, start spouting off in the Queen's English and I zone out.
I drive an intermodal heavy container semi. I deal daily with immigrant drivers and dockhands. Tell you what, for my money, if you weren't born in the USA, Canada, Australia, New Zealand or western Europe, get off my piers and off my roads. Your spoken English is atrocious, you can't drive your way out of a wet paper bag (watch IRT Deadliest Roads, those East Indian cage drivers are good compared to African, Russian, Arab and East Indian truckers), and underbidding the job forcing you to run hell bent for leather is assinine. And take a shower you nasty f***s.

I don't care what anyone does at home. Eat what you want, watch what you want, speak what you want. When I go to my riding friend Doug's, the food is German, the language is German, and the music tends to be SA and SS marching/battle songs. At my little brothers, it is mostly various Gaelic foods and music. At my house, it tends to be Southern food, Southern rock, and Parisian French and Castillian Spanish. With Lakota, Navajo, Coast Salish and a few other indigenous languages thrown in as I remember them (I've studied 30 languages, it gets confusing).
One set of great-grandparents came here from the Alsace. They settled on Long Island NY and kept farming until they died. One set came here from Ireland, via New York and Mexico. That great-grandfather was a shoemaker, he made Babe Ruth's shoes starting when the Babe was still in an orphanage. Another great-grandfather was all of 26 years old when he died of black lung, coal miner and logger. The other was a Master Mason, Scottish Rite, and fire chief in my mom's hometown.
What did they all have in common? They worked hard to make a life for their families. They didn't expect to get everything handed to them. No government safety net, no special breaks because they were "different", no special treatment because they were/weren't born here.
I'd just as soon close the borders to the unskilled masses, but until/unless we get our own kids to start acting like Americans or Canadians and not a pack of entitlement s***s, it's kind of pointless.