They doth protest quite a lot. Especially because, on the single most important issue — instant amnesty — there is no real difference between the proposals.

Rubio calls it “probationary legal status.” Obama uses the term “lawful prospective immigrant.” But both would instantly legalize the 11 million illegal immigrants living here today. The moment either bill is signed, the 11 million become eligible for legal residence, the right to work, and relief from the prospect of deportation. …

Obama makes virtually automatic the eventual acquisition of a green card and citizenship by today’s 11 million. The clock starts on the day the bill is signed: eight years for a green card, five more for citizenship. It doesn’t matter if the border is flooded with millions of new illegal immigrants (anticipating yet the next amnesty). The path to citizenship is irreversible, rendering enforcement irrelevant. …

In the end, the only remaining vessel for enforcement is the Rubio proposal. It is deeply flawed and highly imperfect. But given that the Obama alternative effectively signs away America’s right to decide who enters the country, the choice between the two proposals on the table today is straightforward.