Re: the 10 pledges. There iittle point in being a socialism idealist, you need to be a pragmatist too. Many socialist cannot reconcile this. It's all well and good wanting socialist policies but they are only relevant if you get elected. We've seen time and again the UK electorate doesn't want socialism
Starmer is a pragmatist social democrat and has amended his direction of travel because the world today is very different than in 2020.
Albert Einstein said insanity doing the same thing over and over and expecting to get different results. Foot and Corbyn led labour to their worst ever election results, whilst Blair is the only Labour politician to win an election in nearly 50 years. This tells you which policies win elections.
You can be part of driving some of the change you want, or you can ignore the reality on the ground and carry on with a tory government.