The primaries ended months ago. Who is worse those that blindly support Trump (which is bad) or those that complain about it yet still are the only ones pointing back to the primaries they never got over. Hillary supporters are doing the same thing today.
The issue was and still remains, character.
Trump illustrated in the Primaries (indeed his entire public life), that he was not a man of moral character to entrust the Presidency to in order to further Conservative principles into governance. Trump does not really believe in those principles to begin with. He believes in self. Something even the Trump Faithful admit and admire.
Given what we've endured since Clinton and Obama - it has become obvious that character, honesty, integrity and foundational principles are ino longer important to the American people. We are become as Ancient Israel was under the rule of exponentially wicked and selfish leaders that the people demanded rule them while they practiced those things that destroy a civilization.
It is become obvious that Americans want a Punisher and they want a Provider, not a statesman. Sure they pay lip service to the Constitution - until it is said to be an obstacle towards 'doing what is right' on the avenue of expedience. I cannot count the number of times I have read from Trump's acolytes that he needs to act as dictator or circumvent Congress to do what needs to be done. An immoral people who are the most animated will always demand immoral leaders.
Cruz would likely have suffered the same if not worse treatment from the Oligarchy in the Establishment, the Left and the Media that Trump has. Maybe moreso. The difference is that Cruz would not be handing them ammunition on a daily basis because he has no self control. Nor would he be stoking the fires of conflict and war over the divisions now being made irreconcilable. Publicly flicking the noses of your opposition while giving them the finger via thumbs on Twitter, only exacerbates the divides and engenders the war that has been brewing for decades.
But this is what happens with a man is given Authority and power whom has no core convictions or principles except whatever he can declare a 'win' which often entails humiliation off those who do not adore him, because narcissism demands it.
It is not the fact that the most Conservative candidates lost the primaries to Trump, it is the daily drumbeat we have read since, from Trump's supporters that illustrate they have as much contempt for Conservative principles that the Democrats do when those principles negate total support of their leader.