No matter how they voted otherwise, no matter how deeply Conservative/Liberterian they are (scratch that, BECAUSE of that), no matter how desperately they need butts in seats in the face of a sustained blue wave, they were cut down in plain sight of their colleagues. "Someone here's not a team player." Two of those seats flipped to the Dems, (one in SOUTH CAROLINA?!?), one went Indy in a tough district? Doesn't matter. Hold the line. Sacrifice for the criminal organization that is enveloping you slowly. Or your political career dies and no one will defend your action, much less follow you into the breach.
That's the thing, this is a "damned if you do, damned if you dont" type of thing for vulnerable GOP seats. Im guessing Moscow Mitch is trying his damnedest to get this out of a real vote to even acquit with or without GOP Yeahs as it would put them on paper as something that enrages a side (ME for example, Collins gets a ton of Indy and Dem votes in a lean-D state) due to how many bills have been just sat on his desk. If he could whip this liberal-ass legislation back in the House's face or rip out the liberal parts he would have but doesn't. He can't risk creating a paper trail for the AZ/IA/ME/CO/NC/GA/TX races as much as possible.
Unless it becomes obvious before the jury vote that 5+ seats WILL flip, Moscow Mitch will not buckle. If IF that comes to pass damningly obvious, he may open the floodgates to 20+ to vote Yeah to remove. None of this 5-10 business. That wouldn't help anyone keep the Senate in the bloated corpse that once was the GOP's hands. Same for random bolting stragglers. No win condition there unless they're deeply hit with morals and spine all the sudden on an individual basis.