Trump hasn't been part of the eGOP "scene" in DC and those that have spent their entire lives climbing the social ladder in the eGOP are scared they won't retain their positions if Trump wins. Period. THAT is why they oppose Trump.
"Don't look now, but while our best conservative is running a political campaign, Trump is leading a rebellion. Not as a liberal or a conservative politician, but as a successful red-blooded, can-do American capitalist.", Jim Robinson
That "we should both see other men" pic *never* grows old. My wife giggles when she sees it.