Of those apparently in the field, I suppose Cruz—but he’s not great on illegal immigration either. He talks about clamping down on it, but he would legalize the 20 million-plus already here. (Though he says he’d stop short of giving them citizenship, that would inevitably follow.)
That is, the GOPe has completely co-opted the presidential nomination process to date—as there is no candidate who would enforce our current immigration laws, despite that being what voters and the base really want.
IMO we shouldn’t settle for that and we ought to demand and/or find better.