You are.
There are 100 Senators and 438 members of the House of Representatives. You need the votes of at least half of these electors plus 1 to win the Presidency. That is 270 electoral votes. If all of Trump's electors fail to vote for him Hillary WILL NOT BECOME President since she won't have the necessary 270 electoral votes.
What happens then?
The House votes for the President. The Senate votes for the Vice President. A simple majority wins. Trump and Pence take office on 20 January 2017.
If you don't believe me go read the 12th Amendment to the Constitution. It is quite clear.
This point has been beaten to death, and perhaps people will have to agree to disagree, but a lot of people see it this way:
The current number 270 is not codified in law. If we add more states (Puerto Rico), the number will go higher. If California secedes, the number would go lower. So, the “270” isn’t magic. Whether we are looking into the future or looking at 2016, there no absolute requirement that there be 270 electors.
The law says the “majority” of votes cast by certified electors will determine the winner. I have no idea if MI, PA, or WI will have any electors certified in time for the December vote. But however many certified voters there are (and it could be less than 270) those people will vote and their majority will decide things.
This is pretty much a non-issue.
Yes .... good point .... I believe that was also covered in my recount of the 1876 election.