But that is where it stops, before one is forced to look over one's shoulder, when attaching humour to some other groups.
I can distinctly remember a series (it was called 2D something... I didn't care for it so only watched a few episodes, but I remember it being very popular, at least among people my age) where there was a regular sketch involving a muslim terrorist 'recruiting' two young British students, with the boys' mum always commenting how nice he seemed. That was the jist of it anyway. It was a few years ago so my memory is hazy.
Peep Show also featured one episode which featured one of the main characters befriending someone who was then revealed to be a militant racist.
Little Britain not only featured Mitchell blacking up as SP pointed out, but also an elderly man with an Asian prostitute girlfriend (or it may have been a mail-order wife, I can't remember) deploying a direct racial stereotype. Plus a regular sketch featuring a woman who'd taste locally-made foods
Plus have you heard some of the dead baby jokes going around? Or Madeleine McCann jokes? I won't repeat them for the sake of good taste, but believe me, the British are not afraid of being un-PC or even downright disgusting in our humour.
So if you really look we're hardly tiptoeing around anyone. What exactly is it that you'd prefer, AOG? What is it you're really complaining about?