I live in Liverpool. The bullying behaviour in many local constituency Labour parties has been shocking. We have seen the loss of Louise Ellman, Luciana Berger ( Jewish MPS) and Frank Field ( always his own man and highly principled).
Old, hard leftists, militants and Trotskyites have been re-invigorated by the leadership of Jeremy Corbyn, and are active in local constituency parties and council wards. They are aggressive and vindictive and intolerant of what they call 'the Blairites' and the moderates.
They, along with the young Momentum crowd have been active in trying to unseat many long standing, experienced MPs and councillors, replacing them with, often, very young candidates - or with candidates who represent woke/intersectionalist values - even when they are clearly not as capable as those they are placing.
Even if it weren't for Labour's policy on Self Id, to vote Labour ( as much as I'd like to) would be saying that the terrible experiences of those three lost MPs meant nothing, and were even acceptable or a price worth paying. Can't do that!