I don't think there is a credible alternative. I might be wrong. But the fiasco around the nascent Your Party shows exactly that. This happens time and time again. Lefty leaning parties descend into factionalism and then apathy. I'm not sure this time it's going to be any different.
Meanwhile buggers like ukip or reform or Tommy "I'm a massive cunt" Robinson-Crusoe capitalise on this and gain support and, shockingly, votes.
I don't know what the answer is. Maybe this current Labour government to grow a spine and force through PR voting before leaving office?
I take your point about that. The press isn't going to help especially with Corbyn. But "tiff"? Didn't Sultana start legal proceedings against her own party? Do you go straight to chatting with your lawyers if someone disagrees with you at work? I dunno, sounds like a recipe for disaster. At least from the point of view of those two personalities. For sure the movement and party can survive but I'd be surprised of both of them belong to the party at the next election.