You explain the laws of the various states well, but there is a major flaw in this theory. The electors are not just random people. They are people chosen specifically for their loyalty and long history working with their party.
I was an Obama elector from Pennsylvania in 2009 and I'm a good example. I was chosen by the Democratic Party. I had been an active Democrat my entire life. I had been President of the Pennsylvania Young Democrats and had been a long-time Democratic legislator. I had hosted numerous fundraisers for Democratic candidates and had never publicly supported any Republican. In picking me, the party knew that there was little chance that I was going to just decide to flip and hand the presidency to a Republican. I've known numerous people who were on the Republican slate of electors. They were equally unlikely to vote for a Democratic Presidential nominee.
Today we learned that Hillary Clinton is going to be an elector from New York. She is another good example, I'd take good odds that she won't be voting for Trump on December 14th. And all of the other electors are similar to Hillary and me.
So while it is theoretically possible that faithless electors will switch sides, it is in reality not going to happen. There is one exception. If the election yields a 270-268 electoral vote result, it is possible that one elector might want to make history in some strange way. Maybe two? But once you get up to 4, 5, 10, 25 or 40 electors needed to flip in order to change the result, that is not actually possible.