What you’ve stated above sounds like claims you can make about any group…
Sorry, but this all sounds like anti-immigrant fear-mongering again to me.
I truly wish it weren’t within human nature to so often make different peoples the “other.”
When my immigrant ancestors came to the American colonies in the 1600s, they were fortunate because they were English and came as Quakers– even though they still were certainly not of the higher classes. They were, however, considered castoffs in England because of religious intolerance.
OTOH, when the other side of my family came as immigrants during WW1, they were all too often derided as somehow being lesser, Again: The Other.
I had always hoped, perhaps naively, that globalization would bring us together, not drive us apart.