I would say wait until somewhere around late November to start planning any sort of democratic political strategy.
If republicans keep the Senate, it just will not matter. They win, end of story. In 2022 or 2024 is when we get the Senate then, well strategies can be recalculated at that time. As long as republicans have the Senate, they just flat out win.
Even starting with the starting point of: Biden wins, and democrats control the Senate. 2020 has been a most UNPREDICTABLE and unstable year. Let's see how things are rolling by January 21. Fixing judge issues is on the list of things to do, but there are many higher priorities.
Trump broke a LOT of things. It would be hard for him to burn too much more than what he has already burned down. Getting sane virus policies in place, and getting a successful stimulus package passed, are two items that are MUCH more important. And many businesses would be 100% behind him pushing for his success along the way, from what I can tell.
My current take: republicans invested a lot in winning over the judiciary, not just the Supreme Court, but also all the way downstream to the rest of the judicial branch. They just flat out won, and it was a huge landslide victory for them.
For now I would say let's work around this, chipping away at it when we can (making sure we put solid decent people in place of republican stooges as they retire), but put this on the back burner for a while.
And it is most certainly fair game to use bad unpopular judicial decisions made by republican judges as a way of beating down republicans over the next decade.