Don't we all wish that the situation was that simple.
Unfortunately, the majority of Republicans have shown multiple times recently that they can select a nominee who is unable to win in the general election.
It could very well be that a better approach to this election is to identify that Republican candidate who is least objectionable to the Republicans in order to garner the majority of independents.
The consequences to the makeup of the Supreme Court of a Democrat success in November are almost unimaginable. If someone could create a list of Republicans who WOULD win in November, I would gladly support one of them over Trump, Cruz, or Kasich if I knew none of those three could win.
How do you do that while retaining the loyalty of Cruz and Trump supporters, who constitute the vast majority of Republicans who have voted in the primaries?
You can't, so forget it. I will vote for any mangy mutt the GOPe nominates, even if it's not Cruz or Trump. But don't mistake that grudging effort for an endorsement. If the GOPe cheats the voters at the convention their chosen chump will lose the general election, barring some absolutely unprecedented bungling by Hillary or Bernie.