It does not show an understanding of the moment to say Donald Trump by himself has changed the Republican Party. It is closer to the mark to say the base of the party is changing and Mr. Trump’s electric arrival on the scene made obvious what was already happening.

For this reason among others, I do not understand the impulse of the NeverTrump people to anathametize and shun those Republicans who will not vow to oppose Mr. Trump and commit to defeating him. They have been warned that if they don’t do these things they will not be allowed to help rebuild the party after Mr. Trump destroys it. Conservatives love to throw conservatives out of conservatism; it’s like an ancestral tic. But great political movements should not be run like private clubs. And have the anathemitizers noticed they aren’t in charge anymore? That in the great antiestablishment disruption of 2016 they have been upended, too?

We don’t know what’s coming in 2016, or what happens to the GOP if Mr. Trump wins or loses. If there is a rebuilding of the party, as opposed to an ongoing reinvention, we don’t know when that will commence. If it is a rebuilding, on what grounds do the NeverTrump forces think it will be rebuilt? As a neoconservative, functionally open-borders, slash-the-entitlements party?