I don't think it is, though. The idea NeverTrumper scenario was a presidential blowout with massive downballot ticket-splitting. Trump's politics and perhaps the man's own political career will endure this very narrow loss mitigated by massive base turnout for his brand of Republicanism.
Looks like it'll be a fairly comfortable, but not blowout, Biden win. He's likely to win all 3 blue wall states, and is favored in Arizona and Georgia.
Yeah, but the reason it's not a blowout is because of insane turnout - Trump expanding the base in ways previous Republicans failed to. The focus for Republicans will now be on emulating whatever he did to get and keep that turnout; they can rest assured that Democratic turnout is probably going to drop in 2022 and 2024 regardless of who their next opponent is as Biden starts taking flack for problems beyond the current and the next president's control. That would presumably be enough even for Trump himself.