That's stating it mildly. He is alienating a huge number of voters even within the GOP
At some point if Trump won the nomination the posts would/will shift from ‘Trump will win a 50 state landslide with all those crossover voters’ to the desperate ‘WE must all support and vote for Trump to stop Hillary’.
Of course many supporting Trump also say that they may not even vote if Trump doesn't get it, in that case they don't see a Hillary POTUS as a problem.
At some point if Trump won the nomination the posts would/will shift from Trump will win a 50 state landslide with all those crossover voters to the desperate WE must all support and vote for Trump to stop Hillary.
Especially if his poll numbers don’t rise against her’s in the general. If he and she get their party nominations, we’ll go into the general with two candidates already disliked at record levels by the voters. Yeah, I know. “But the rallies!!!” The rallies are not the same as the general election
I remember the Romney wars back in 2012 and they are no where near as heated as they are with the Trump/Cruz battles. And he lost the general election. More bad blood that may never recover from.