Kasich is an open-borders asshole who would never be invited to a State dinner. Trump already said Kasich is disgusting.
He's not you. And he's not a conservative either. He's a politician and all his decisions going forward from here will be based on whether or not it will help him win the election.
It will be Kasich or some other establishment toady that helps him move to the center. He's no longer trying to win over conservatives, he'll be chasing moderates from here on out.