I see you also lived through the 2009 congressional cycle.

If the Democrats can keep their Senate majority then they can have an actual trial for these impeachments, something that didn't happen for the Trump impeachments (since the Republicans had Senate control then.) There probably still won't be enough votes for the removal to actually happen, but it'll let the Democrats really rub the Republicans' noses in the corruption going on in the Supreme Court and make their vote to protect Thomas and Alito more damaging in the next election.

At any rate, Thomas and Alito are currently the two oldest justices on the court, and if Harris gets two terms then there's a good chance that one or both of them will be dead by the next time there's a GOP President. That, combined with some strategic retirements on behalf of some of the older Democratic appointees has a good chance of unfucking the court for a while.

Jeffries would have everything to gain by forcing the issue

I mean, I've been saying this about DC Statehood for two decades. Democrats should have made DC a state back during the Carter administration's majority. All upside, save for the fact that it dilutes the power of the rest of the Senate by 2%. Bonus, because it gets you that much closer to doing things like a Senate conviction or a Constitutional Amendment passage via a liberal supermajority.

But this is something Democrats have punted on over and over and over and over again. Even within the Dem Senate Majority, you can't find enough votes.

Republicans will never sign on to get the 2/3rds majority there

If you can get a Senate Dem majority on record as saying these judges need to be removed, the case for court packing gets stronger.

But this is another thing Dems can't be convinced to pull the trigger on.