The Platner thing is a perfect intramural clusterfuck - at least among the terminally online. It involves preening Bernie Bros on the one side and the women and minorities on the other, lots of hurt feelings and no clear offramps.
However...
We need to keep our eye on what's important here. Josh Marshall has been writing (here and here and here) on the corruptness of the Supreme Court and why reforming the Court and clipping its wings has to be an imperative of whenever we return to democratic rule and Democratic governance. It's the one thing that has me truly despondent about the near and long term future. In fact, we have the Court we have, at least in part because of the schisms of 2016, which might very well have pushed Trump over the finish line in the Blue Wall. Maybe a unified party win those three states, and we have no Gorsuch, no Comey Barrett and likely no Kavanaugh.
The evisceration of the Voting Rights Act is an obvious example of the Judiciary rewriting the laws and overturning precedent to suit their ideological whims. However, we can't forget Dobbs. The decision to overturn Roe v Wade has led to restrictions across the country on women's access not just to abortion but all sorts of reproductive care.
Now, we have a Republican Circuit Court (the Fifth, naturally) banning the shipment of mifepristone across state lines. This is a classic case of the Dog That Caught The Car for Republicans. Bans on abortion drugs are pretty damned unpopular outside Trump's evangelical base. People might blanche at surgical abortions, due to decades of anti-abortion propaganda. Taking a people that expels the zygote is less offensive to some fence sitters on the issue. Why is a morning after pill worse than a morning before pill?
Republicans don't want to upset anyone any more than they have to in an electoral environment that is likely to be harsh already. If the FDA rules that mifepristone is unsafe (it isn't), then we have more people pissed at the degradation and politicization of medicine and science. If they rule that it's safe (it is), then the evangelicals walk out. They want to punt this until after the midterms, but the drug companies are pushing for an immediate ruling, not just for political reasons, but because this will legitimately sow chaos across telemedicine and the overall medical landscape. At a time when Trump's Big Ugly Bill gutted healthcare and rural health care in particular, destroying telehealth would be a disaster.
How many times to Susan Collins vote to confirm a Supreme Court nominee that helped author Dobbs? Five times - she didn't vote for Clarence Thomas, though, but only because she wasn't in the Senate. While she didn't vote for the OBBB that cut rural health care, she voted to advance it to the floor, in a classic example of strategic voting that has served her well over her career.
Platner, for all his baggage, does not carry THAT baggage.