As far as alienation goes, I find that highly ironic. How many people do you think Trump supporters have turned off with their naked worship---comparing him to Churchill, Reagan, OT prophets, William Wallace, and Jesus?
How many do you think have been sickened by the posts calling for Trump to be installed as a dictator, for him to govern by illegal executive order, and for the Constitution to be pushed aside?
Fine. Ignore Cruz’ intelligent approach to Trump and his supporters. I’m sure both he and you are good with single digit support, so there is no need to persuade others to join the cause. Insulting them instead is, after all, so much more gratifying.
The vast majority of Trump’s supporters do not want any of the craziness you mentioned—a dictatorship, for instance. And the approach must be working ok, since Trump still has a wide lead in the polls.