That's the point, they haven't. Once again the chumps have believed the Tory and right wing media lies, like slashing waiting times for ops, 50,000 extra nurses and many more doctors.
They never seem to learn, so there's no reason they'll learn Corbyn is no good if that's true.
This election was primarily about Brexit and who was the best bullshitter, an easy win for Johnson.
.
You seem to miss the point.
They know they are waiting longer. Seeing less doctors and nurses.
But despite this they would rather vote for more of the same than vote Corbyn.
He is hated that much. They would rather die than vote for him.