Very out of context quote from BoJo whilst he was defending the right of Moslem women to wear that stuff, but I'm not here to defend what he might or might not have said.
One thing you can definitely do is tell Jewish jokes - Jewish people do it all the time.
Jewish people sometimes wear a hat called a Kippah, and no one minds when other people call them frisbees, because that's just a bit of humour. Of course , some people manage to use it in a nasty way, ( as has been done on this thread), by calling Jewish people "Kippers" and daubing it on synagogue doors.

That's not the point anyway. Jokes are one thing, calling those who support Hitler and the holocaust " freinds" and " brothers" is something else isn't it ?

The bottom line is that Jewish people - who have some experience - increasingly detect the early signs of a dangerous persecution. It's all very well them denying it, but the plain fact is that people don't believe it. There are just too many examples to ignore it