Sure, but if you give these "moderates" a seemingly reasonable Republican candidate who puts up a good front and who also won't say the quiet parts out loud, they will vote for that candidate every time. E.g., if Jeb Bush or Mitt Romney ran again, they'd vote for them in a heartbeat. Then those candidates will do almost all the same things Trump did, just without drawing attention to it, such as lowering taxes on the wealthy, installing ultra conservative or big-business friendly judges, starving social services, removing regulations, etc.

Moderates have no principles, so this is always okay with them.