Rag,
remember the person who said that the mayor of London was a Pakistani merely because of his skin colour.

No I don't, because no-one has.
Like Alibhai-Brown he was born into that community.
Had he been white and adopted it would be the same.
No-one mentioned "skin colour" EXCEPT YOU RAG!
You have a racist's obsession with it.

Now, will you PLEASE explain why failing to recognise a racist statement indicates racism, but if it is an antisemitic statement, "that is a different argument."

Such double standard are themselves antisemitic Rag.
We are entitled to an explanation.