“and forgotten the most important thing is to break the GOPe hold on the party”
Hmmm. So his only option to prove to you that he is not establishment is to drop out of the race?
He has no realistic way to gain enough delegates to win the nomination so he is now only in it to get to a brokered convention. For that he is a useful tool of the GOPe.
I could have hung with him as the second choice and him staying in the race if he had not brought Neil Bush on board, disavowed the move my the party to trash Trump at any cost to retain power, and not embraced their moves.
It is clear he has cut a deal and the only ones who lose are those fighting to stop the GOPe selling out American citizens and workers.