FL & MI haven't been disenfranchised, yet. They should do the revote and, frankly, the DNC should foot the bill. If they do that before the convention you won't be disenfranchised.  If they don't, your state party will have disenfranchised you by violating DNC rules.  And please don't make me dig up the link that shows that they didn't have to go with the GOP Senate established date.  

The fact of the matter is that there are rules for exercising a franchise.  Take the GE as an example.  We get to vote on the first Tuesday after the first Monday in November.  We don't get to vote on November 1st and have it count.  This is essentially what FL & MI did.  We hvae rules to facilitate the annoyingly complex process of nominating and electing officials.  And those rules are not to be broken under any circumstances.