You want the Labour party to be a protest party in etarnal opposition, and by default a Tory govt.
I want the Tories out, which means Labour getting in, which in turn means the Labour party appealing to enough of the electorate to win. When you consider that the UK has consistently voted in Tory govts bar a handful of years (5 terms in my lifetime, and two of them were disasterous) you realise that there has to be enough compromise to appeal to people who used to vote Tory.
You don't get that by being a Corbynite, clearly, because if you did Corbyn would have not lost two elections with one of them being the worst defeat in 84 years.
What is it you were saying about heads up arses?