This video shows two impressive things, first that America is a nation of immigrants, and second, Europe will always have trouble with immigration since it is a land of emigrants not immigrants.
Watch two centuries of immigration to the US in this amazing animation
We do immigration right, because it is what we have always done. Europe on the other hand, has been a place sending people not receiving. As such they have no idea what to do to assimilate large numbers of immigrants.
America moves through phases in immigration. Commonly after long periods of receiving large numbers of immigrants we suffer a short period of backlash when we feel a need to slow immigration to allow for assimilation. We seem to be entering one of these after a long period of Mexican/Latino/Asian immigration. It is not clear whether Trump reflects this or whether he simple understands this sentiment and is willing to repeat it back to the electorate in order to gain votes. Regardless, it is a clear indication that we need a brief respite to assimilate before we resume immigration.
This should be an interesting year, and interesting election.