Inter arma enim silent leges.
Okay so let's workshop this. Paul Ryan calls up Mitch McConnell and says "hey, I think we should hold a vote to revoke elector status, something that is without the slightest shred of doubt a power endowed to the states." Mitch McConnell replies "Sure, I would love to get laughed out of office for a half-baked anti-constitutional putsch"
What do they do next? Hold a floor vote where they cant even make a quorum? Kidnap John Roberts?
We are discussing this scenario in wake of the hypothetical of "everybody who could win the election except Jill Stein dies the day before the election", so let's keep that in mind here.
So the first words are probably, "holy shit, what the holy fucking shit" and Obama deploying the national guard to keep society from panicking into the self-destruct button.
For the sake of argument we'll just go with Jill Stein getting 270 due to being organized, with maybe a 25% voter turnout amongst all the people who get organized within the 24 hour period.
So, Paul Ryan immediately knows that everybody is thinking this election is kind of full of shit, and it's not like the Dems
really want to deal with President Stein. Congress declares a special session in which the election is discarded due to extraordinary circumstances. It's more likely that another election with him and Warren or someone happens in December, but it's also not impossible that with Republican control they just vote on majority to declare Ryan the winner instead.
Most people will accept either outcome, with more bristling at the latter (which aside from discarding the election is also absolutely "constitutional"). They won't really be upset at the alleged "violation of the Constitution", which only sticklers and Stein supporters will bring up, because their gasoline will be affordable and armed gangs won't prowl the streets. The goal of the government is to reduce the price of bread, not to follow the ethereal ideals that make up their talking points. This is why Donald Trump is such an obvious disaster even if you were the type to agree with his ideals.
Human beings are not machines that follow the computer code of the law, or at least not all of us. Congress violates the Constitution every day in ways they consider acceptable. Due to the circumstances of this, "acceptable" changes pretty severely. You can't even tell me that, in more realistic terms, if Donald Trump weren't to make it to election day that the Republican Congress wouldn't try to get Hill-Dog disbarred or the election postponed. Successful or otherwise.
Given the way the typical American soldier, and their COs, would probably feel about someone stomping all over the constitution, I don't think a coup would be necessary. They would just tell Congress to fuck off, their Executive Officer has not given them the order to enforce this unconstitutional Mandate, Supreme Court would agree because that's their job, and Congress would then be in a whole shitton of trouble with basically everyone and everything.
What People Imagine Soldiers Say:
No sir! Constitutional liberty!What Soldiers Actually Say: Oh thank god, there's not going to be a civil war/societal collapse, I'm not going to die killing insurgents in my own country.