I once had the opportunity to push Corbyn onto the tracks at an Underground station.
You probably didn't so the Tories could win the election!
Again, you exaggerate due to your personal dislike of the man. The 2015-20 period in Labour party history, and not least the 2017 GE, are going to prove fascinating ground for future chroniclers.
Not really, he’s already being forgotten
Which just shows that you are not based in the UK , I can state pretty confidently he remains far from "being forgotten" here. Indeed, a desperate Tory party still intends to make "Starmer supported and served under him, thus he is unfit to be PM" a key part of its GE campaign.
That's true but Starmer can say, since he withdrew the whip, "I've changed my party, he follows his!" whenever Rishi brings it up.