Priebus is still a significantly better alternative to an idiot like Carly Fiorina, but the #NeverTrump movement is willing to destroy the party rather than watch their archaic, tired brand of Movement Conservatism die.
This isn't really much of an accusation, considering we all pretty much agree we'd rather burn down the party than hand it over to the Trumpists. Thankfully, the youth are on our side, so this blip isn't going to last particularly long.
People under age 30 who consider themselves Republicans...yeah, that's a really fertile crop to harvest...
It's a more fertile crop to harvest than you might think (Romney won 37% of the under-30 vote, for instance, and in 2014 House Republicans won 43%); 2016 is going to see many typically-Republican younger voters prefer Johnson or Clinton to Trump (I will be one of them). These are people who in the primaries outside the Northeast routinely voted for literally
any candidate over Trump, regardless of the ideological positioning.
Also, while using "the youth" I did imply "people under 30", it's still just as valid for voters under 45, in which case both of the numbers I cite above grow significantly.