Ok, it's this football shirts/immigrants thing again for which I apologise.
A friend (not a close friend but a friend of my sister) has posted asking if it's true about police going round pubs telling people not to wear football shirts for fear of offending immigrants. I've replied saying it's bollocks. A load of her friends (who I don't know) have replied with the usual tiresome nonsense ranting about immigrants.
Would it be really bad form to point out that they're all a bunch of racist twats? And if so how do I best go about this?