There always used to be a bargain that we made with the Labour Party. On one hand, we would vote for them because we believed in certain values. On the other, they would occasionally pay lip service to those values while they did whatever was necessary to get elected.
Once in power, they would deliver on the deal by making the world a slightly better place. It wasn't a very good bargain, but hey, it was the best one available.
Then there was Corbynism, and suddenly none of this applied. Suddenly the reasons why we voted for Labour were actually reflected in Labour Party policy. It was intoxicating.
Not everyone went along with it, of course, and I think some people were happy to get back to the old "you vote for us because of your ideals, we do whatever it takes to get elected" system.
But there's a problem with that system, which is: how do you know what the people you voted for (out of what you assume are your shared ideals) are going to do in office? How do you know what they want to do? You don't. All you know is what they're willing to say to get elected.
And if it turns out that what they said is in fact what they want to do, where do you go from there?
PR