No, his issues will not disappear with him.
The problem with Amnesty is that the 5th Column in the Republican Party, the ‘advisers’ (most of them gay, by the way) have CONVINCED virtually every candidate that the only way to get support is to pander to Illegals...and they have done so, to varying extents - by pretty damn much, with the possible exception of Cruz.
Trump has blown their claims open - people will step in, even if Rove can round up enough women to claim that Trump is another Bill Crosby.
Well, I still disagree, if he’s driven out (and he won’t be) but if he is, he’s going to be driven out over the hot button issues he’s raised.
Then, everyone else will be scared to even touch them.
Anyway, this is all theoretical, he is in this to stay.