Wratchet of Rhetoric

Have you noticed the Republicans talking about how reprehensible and unacceptable Trumps bigotry is? 
Normally we expect Republicans to tolerate and soft pedal their criticism of bigotry. We are watching a special process.  The ideals and rhetoric of inclusion and diversity were set up by progressives over decades, and are suddenly helpful to the Republicans when they are confronted by a venal, disruptive force. It becomes a watershed moment, because for the relatively small benefit of depracating their nemesis, they are driven to acknowledge a huge principle.