frogwoman
No amount of cajolery...
Which black flags? The ones which say the Shahada?
Would you also ban Christian articles of faith from political marches? Do churches march with their church banners? An example would be 'Name of Methodist Church - Amnesty International' or something similar.
Is the wearing of a t-shirt saying 'Property of G-d' political or religious?
No problems with religious t-shirts. But the islamist twats always seem to be wearing *that* t-shirt.