I do think there is a slow realisation that the party is dying and it needs to be put out of its misery. There are too many contradictions in the party and it cant be two things at once in my view. If Clive Lewis feels he cannot even discuss something because of fear of expulsion then what is the point of the party at all. I know Starmer wants to purge the left in the manner Kinnock did but the left is much stronger now than it was in the days of militant. Starmer has the impossible job, but he wanted that job and he has to do much better than he has the last couple of days because his actions, his u-turns and his inactions have caused further splits rather than bring about the unity he campaigned on. I don't think it will bother him though as he will get the party he wants and he will hope that losing the left of the party will be made up by bringing the right of the party back on board.
Now as for the process, i am not certain. It is within Starmer's remit to not allow him into parliament as a Labour MP by withdrawing the whip, but it shouldnt be in his remit to decide if he stays in the party because that is what Corbyn himself was accused of doing. It is a clusterfuck of epic proportions and the only winners short term are the Tories who can tory to their hearts content. Labour i think has to split now, its beyond repair. Labour as is under Starmer will probably become the party of rejoin the EU and be socially liberal and carry on with all the stuff that alienated the red wall. The left can do there own thing and argue about the finer points of Leninism or whatever other ideological point is the hot topic and the tories just tory along doing tory stuff, in the background you can hear the sniggering of the capitalists as the champagne corks are popped and the threat of Socialism diminishes once again.