+2
It might be terrible news for Trump haters, too. He may have only had the support of a minority of primary voters, and he only won because of a bunch of silly overlapping Prisoner's Dillemas in an overcrowded field, but he still won, and at this point it might be better to let this campaign play out the way so many of us think it will. Otherwise we'll be hearing forever about how he would have won, would have been a great President, and so on.
I was all for stopping him if he didn't literally earn the nomination under the rules (IE: had the most delegates, but not a majority). I'm a little more circumspect about circumventing that process. It's perfectly within the party's rights, to be sure, and if it happens it'll have been almost entirely Trump's own doing. But a substantial loss in November might be the only thing to break this fever. That happens to all but the most stubborn and reality-resistant supporters if he loses a straight election, but it probably persists otherwise.
Things like removing him at the convention and/or mounting a serious third party bid just give him an excuse for a loss that's almost certainly coming anyway.