"What If Corbyn And McDonnell Had Won?"

It would have been much like this, for all that it is McDonnell's job to demand more today. He might very well get it, anyway.

Now, if Cameron and Osborne had still been there, or if Starmer had been in office with whoever would have been his Chancellor, or if we had still had a Government with the Liberal Democrats in it, then we really would have been in trouble.

Centrists cannot learn. Their view is entirely inflexible. Everyone else is an "extremist".