From local councillors to climate activists, there is a growing group of people who won’t stand for Labour inaction, says Guardian columnist John Harris
Did you read the article before posting your comment friend?
And are you familiar with the current state of British politics?
Labour is almost certainly going to win the next election due to the Tories incompetence with offerings not doing all that much different than the current government which has been at best dysfunctional and at worst actively hostile to it's citizens and non citizens.
The "progressive" candidate, as you describe them, is about as progressive as the Tories circa 2008, perhaps, even less progressive than that.
The party has made a big song and dance over having gotten rid of the progressive leftys (Corbin and his ilk), amongst also courting landlords, big business and saying they'll likely continue the Tories methods of using prison style barges and abandoned army bases to house immigrants.
Whether or not that's Starmer playing the media's game, trying to keep Murdoch's media on side much like Blair did is yet unclear, but it makes many who are old Labour feel very uneasy about voting for Starmer if he's going to take the same route that's lead to our current position.