I had practically the same thing happen to me in Clapham posieparker, my first ever stay in London was an eye opener to say the least
& I'm pleased to say that "reverse" racism (all just racism to me :)) DOES hold up in this country...I had an old friend who was hounded out of his LA Flat due to racist taunts & vandalism by his ethnic neighbours,...... okay he was a hairy @rsed biker who wore a German helmet on his bike, but as his best friend was black & a regular visitor to his home, he could hardly be accused of being racist....... his complaints to the Police & council WERE eventually taken seriously, charges brought& he was rehoused.......probably the only time I've heard it taken seriously though