I just watched the news - it seems The Gammon's beef (pun intended) was that Pro Palestine supporters that are out every Saturday can shout what they want and The plod will stop a man - for being "openly Jewish" from crossing a road near the Palestinian marchers etc.
The Gammon's on the other hand were not allowed to protest etc - is that the rough plot ?.
ps - If Gammon's became a religion and fundamentalist like ISIS / Al Queda - I bet you wouldnt be calling them Gammon's then