You do realize that the US actually has the capacity to absorb the immigrant hordes pouring in. The UK doesn’t. US immigration issues should be the least of your concerns the way things are going in the UK.
Trump is a disaster of a president, but he has actually had very little impact on immigration and immigration policies. Things on the ground wouldn’t be much different if Hillary had gotten elected, although perception would probably be very different because the relationship between the MSM and the government would be a lot better.