Has anyone ascertained which particular Sikh faction was responsible for the demonstration? There are several in this country who support parties based in the Punjab and are anti/pro Khalistan etc etc. It is possible that politics plays a part in this just as much as the subject matter. It is not unknown for opposing factions to attack each other with kirpans (swords) etc at their Gurdwara's. However, if the various religious leaders gang together so will their followers until they fall out again, and they will.