I absolutely knew that would be the response! It's a fact, most people on lower socio economic status or earnings voted leave. Yet jokes like this were fine and lapped up and did no damage to his career it seems. No calls to be cancelled...and that's right! That's how it should be!
Imagine the furore if the joke was aimed at some of the groups who typically try to cause the cancelling / ending of careers?
I only mention this as an example of punching down which was deemed fine in this case.