His ideology isn't a problem; but his sanctimony, his lack of clarity, his retreading of overly safe ground, his appearance and lack of posture and his generally weird behavior cripples his chances.
Kasich's ideology is part of the problem, though his sanctimony makes him radioactive to the base. He's an Obamacare-supporting, immigration-loving RINO who said he should be running as a Democrat. He would have serious problems winning over the party's conservative base, especially since he's been attacking the base since he started running. Many Trump-skeptic conservatives would flock to Trump if it came down to a contest between Trump and Kasich. At least Trump hasn't gone out of his way to attack the conservative base of the party.
Kasich can't win the GOP primary.
