Starmer announces resignation as prime minister and leader of the Labour party
(www.theguardian.com)
I think the u-turns are symptomatic of someone who doesn't have strong personal beliefs, which fails to meet the moment. But Liz Truss had strong personal beliefs which were catastrophically wrong. Boris Johnson has strong personal beliefs in enriching his mates and throwing parties. Being a bit wishy washy and middle of the road isn't good, but it's so far from deserving of "second least popular PM ever" it's not even funny.