To be fair, almost NO American wants to actually go back to the old country.
It's fun to talk about how much affection one has for the country of his/her ancestors, but almost no one would want to live there. (That's why I agree it would be cruel to force the Dreamers to return to their parents' countries.)
Most Americans realize that despite the problems that we face (e.g., the growing antagonism between two certain ethnicities that is being whipped up by unscrupulous individuals), most Americans want to stay right here.
Oh, sure, it's fun to have parades celebrating Irish or Chinese or African roots, but parades and special days are the limit to such pride. No one is going anywhere. We are stuck with one another.