I think this is a perfect illustration of the "debate me" crowd's actual goals, which are not debates but gaining power through any means necessary. fed soc is not a debate club, it's a fash recruiting tool. vance doesn't want debate, he wants a violent mob to overrun the debate.
The debate settled when the all votes were counted, when Trump lost 60 something court cases, when the electors voted in the state houses, and when Congress certified the results on the morning of January 7th.
"let's have a debate about it" is what they say when they've lost the argument/election/battle/whatever and don't want to actually concede that they're wrong or should cede power. well, maybe you think evolution is real and I think it's not, let's teach the debate!