The forum feels like a microcosm of the wider issue. There have been a number if us traditional Labour voters trying to explain to the 'purists' that the Labour Party cannot win an election without the support of those that share our views - only to be told to fuck off and referred to as Tories etc.
This is not a situations of taking satisfaction from having been proven to be correct - as people have said the UK needs a credible opposition and the had-left have destroyed that through their indulgence.
Listening to McDonnel and Corbyn at the weekend there is widespread denial and refusal to learn lessons and move back to the centre-left ground.
As a Brexit supporter and someone that could not possibly vote for Corby/McDonnell I have a huge sense of relief - 'a bullet dodged', but that is very different from being happy with the outcome - as I say the UK needs a credible opposition.
I think that Blair gets it right in this article:
https://www.bbc.co.uk/news/election-2019-50829352