Corbyn only spoke to people who already agreed with him. He had no interest or ability to persuade the 10-15 % of people who switch parties and are the key to winning an election. And yes the working class people who I worked/mixed/socialised with did hate him, and if they didn’t hate him, they never thought he was a credible choice as PM. Hence why we have a right wing troglodyte as an MP in Lincoln rather than the still working nurse we had until 2019. And all that’s before we mention anti semitism and pals like Chris Williamson who should never have been anywhere near the Labour Party let alone be an MP.
I fully get why anyone might think Starmer isn’t the most inspiring character as Labour leader. The old saying about not letting perfect be the enemy of good very much holds though, and I want the Labour Party in power where they invariably improve people’s lives more than the self serving cretins who’ve we had for the last 12 years.