Exactly. There is no wedge. There are Trump supporters and never Trumpers. The never Trumpers options will all be gone sooner , rather than later and theyll have no choice. Unless of course they are not actually Republicans.
You are talking about the primaries. And you are right. Trump will likely run away with the nomination.
Nationally, it would take quite a shift for him to win.
Enjoy the next few months. After that, it will get painful for Trump. And the rest of the party “loyalists” will get sucked down with him.