Move them goalposts! You know why you're always mad? Because you ignore all evidence that doesn't make you mad. The simple argument here is that more than half of voters polled said their mind would change. Doesn't mean Trump loses, doesn't mean Bernie gets his sainthood, means that there is statistical evidence that minds can change vis a vis Trump. Only thing we're talking about here, buddy. You can absolutely say "everything here is shit" but when I say "technically that's a dandelion growing over there" you're wrong. Simply.
Yeah dude, it has. You went from "Nobody has an opinion on the man that is capable of changing" to "Poll data last time said he would lose" and now we're at "I don't believe in polls" to "I believe a Trumpster is perfectly happy to lie to your face about who they support" despite the fact that "shy Trump voters" are such a tired saw that there are several hits a week going back two months. In three statements you have gone from "nobody has an opinion capable of changing" to there is no evidence you can show me that indicates Trump voters don't lie about everything to everyone.