You don't have to go back to 2000 with Trump either. Back in 2012, even Mitt Romney was too conservative on immigration for Donald.
I'm not committed to any candidate either and agree that they're all opportunists to some degree, but Trump's opportunism and about-faces are probably the most shameless and blatant of all the Republican candidates. I think it's a shame that the candidate who says the right things about one of the most important issues (illegal immigration) is also one of the least sincere.
Tell me, who is really sincere about this? Or anything that's going on? Do you want someone to talk in a mild manner way, like McCain? Look at what a serpent McCain is.