It's really truly done now.

I live in a very working class bit of the North West and have working class Northern friends and family everywhere. A quarter of them will never vote for Labour again due to their Brexit disaster, about a quarter are in their teens-30s and were burnt so badly on the party undermining itself they'll never go back, and about another quarter are old socialists who are old enough to know that Corbyn was a very brief window of opportunity and Labour is done for another generation or more.