Which "motherfucckers" would those be, the millions of voters who were disenfranchised through no fault of their own, those motherfucckers? 
You're only against it because it would work against your preferred candidate. If the shoe were on the other foot, you'd be screaming the loudest to "let all the votes count".
Actually, I don't think it would hurt Obama at all if they had a "re-vote"... He would get the opportunity to campaign an it can only help him to get more delegates... remember... the magic number is 2024 right? Putting him on the ballot in those states may actually make Hillary look that much worse... especially if he wins them the second go around.
It's not like he won't pick up delegates in Florida, and I bet money if you revote Michigan he'll win that state outright.
This is the same guy who won Texas... now if Obama can win Texas over Hillary (which he did) then he'll win this thing outright.