Exactly. For my vote to count now, I only have to ensure there is no massive vote fraud in my own state. But if this compact goes through, dead people in Chicago will be cancelling out my vote. Who needs that?
Besides, I still say that the State Legislatures of Massachusetts, New York and California are going to abrogate this agreement the first time they are forced to cast a vote for a Republican. Such a move would be wildly popular with their constituents. They can see on which side their bread is buttered.
That would not be legal and would immediately be contested in court. The voter has a right to know how that vote will be counted before the vote is cast. If it turns out that these states, after the fact, don't like the results of the election and try to revert to the old way for just that election, there is nothing they can do about it until the next election because that would be changing the rules during the election.
Of course, that wouldn't stop them from trying...
-PJ