It's illegal now to cross the border and they still come in, so why would they suddenly leave by the millions if Trump is elected? Do you see my point? It makes no difference to them now so why would it make a difference then?
The wall we have now is cheap and breachable as everyone knows. Trump is talking about something like the Wall that was in Germany that can't be breached. That kind of wall is costly and patrolling it to stop anyone from trying to breach it is also costly. You don't know who pays? It wont be Mexico I can assure you. It will be the taxpayers who are already heavily burdened with taxes. Such a wall would be of no benefit to the taxpayer.
If Trump wants the aliens gone he should concentrate on removing those who come here for Welfare and free medical care, not those who come here to work and take care of themselves.
Oddly enough Mama, when we're behind someone with food stamps in the stores it's virtually always a black or poor white person, not Hispanics, Muslims, Asians and the others we have here in my county. Most of the crime in my country is committed by blacks, not the Hispanics.