I am afraid that he is proving your point. I suggested a couple of years ago, at my Conservative Resource Center, that Conservatives contact Rubio to point out how wrong he was to put those he left behind, ahead of his new fellow countrymen--that his sworn duty now was to the people who took him in, not those his family left;--but his persistence in embracing what amounts to a betrayal of his duty, renders him unacceptable, no matter how eloquent he can be on other issues.
It is too bad, but we need to support Cruz & Trump, not Rubio.