Instead, I think it's more effective (and more realistic, perhaps) to approach this from the truth that, unless Cruz is 100% Establishment, then he is being played by the UniParty to lock out Trump at the convention. Cruz may actually think the Establishment would actually let him win!
If Cruz is what his supporters say he is, then there is NO WAY they would let him win the nomination. Let's face it, the UniParty is either in denial about causing a civil war by stealing this election from the people or they just don't care because the stakes are too high.
Some Cruz supporters seem to have a firm of cognitive dissonance that won't let them see that if Cruz is truly a constitutionalist, then he will not be allowed to win the nomination. (Either that, or they don't understand the possibilities of digitally invisible malware that will never be detected.)
What the UniParty may be planning: The RNC would stop Trump by giving Cruz his votes, but not enough to push Cruz over. (Plus the Mississippi treatment, which has already started). Right before the convention, the UniParty would either change the convention rules, or hand-pick a few judges to go after the 'birth' issue as harrassment. Get Cruz's doners to accept Paul Ryan instead, and Cruz has no fund to fight in court.
And all THAT is under the assumption that Cruz is what he says he is.
Just my opinion, although no one is listening. It's too late anyway. The only way to stop it was to have a paper trail in all states.
Very insightful great post thank you