You wish, but with a 2-man race, and with Trump having a clear ceiling of 49% (his best result, in ultra-liberal MASS, and only 46% of delegates), Cruz can easily get to 1237 with all of the winner-take-all states coming up. Cruz's path to victory is simply Kasich dropping out.
OUR path to victory is Kasich dropping out. If he does, we get Trump or Cruz... if he doesn't, we get the Convention, and the GOP blows up when they name Mitt or Huckabee.
In every pathway, Hillary wins in the end... except against Cruz, and only if Kasich drops out really soon, and only if the Trump Ceiling exists. Otherwise, it is Hillary.
Trump is going to crush Hillary in the general election.
He can actually force Democrats to defend Blue States, Cruz cannot.