Trump won every county in Florida but one. If that doesn’t justify winner take all, nothing does.
Nothing justifies winner take all in a democracy. Trump wants democracy and cries about it when he doesn’t have it. So to be fair democracy for one democracy for all.
Maybe getting over 50% of the vote an argument could be made, but not in a democracy. Did Trump get 50% of the vote? oh no, that’s right he didn’t. So a majority of the voters were disenfranchised.
Romney is behind a lot of it because he can't handle Trump saying that he supported Romney, Romney should have won, but Romney choked. It's personal for Romney, so watch for more stuff like using what Rubio was shopping around for months about Cruz having affairs then blaming it on Trump.