I think what disgusts me the most here, from both the deplorable governors and their equally vile cheerleaders, is that we all know there's absolutely no good faith or honesty here. They know they're full of bovine excrement, they just don't care. If a Democratic governor was to use identical reasoning to, say, start confiscating privately owned firearms, not a single one of them would say, "I don't like it, but that's the precedent we set" - they'd all scream to the heavens about how horrible it was.
All this really is, is one more example of how Republicans think law are something they get to make for everyone else to obey. It's a completely mortally bankrupt position that does nothing but remind everyone that Republicans are irredeemable threats to the future of the United States and its citizens.
I wonder how many of these 25 governors agree with using Bush v. Gore as precedent for having the federal government stop a state recount.