Malumbu makes some good points re the value of 'charisma' in a leader, it can be a dangerous thing. Starmer, from reports I have read, is not good at taking the party with him, there's not enough consultation with or listening to his back benches. More consultation might have avoided some of his mis steps... I don't think we should be replacing him for the reasons already stated.
Also agree with Vladi, potentially the asset rich/income poor older people are vulnerable, but don't think they're not up for protesting – check out the number of pensioners arrested on the Palestine Action protests!