[Less]

It is quite simple, the cure is passive resistance, if (as unfortunately it will) it happens at a venue you are attending just turn your back on it until the stupidity is over then turn back to watch what you came for.

If anyone asks why you did this tell them, 'I used my freedom of choice I don't want to see this rubbish I'm here to enjoy the match/parade/whatever, not that.

If enough people do this peacefully the message will get across that it isn't compulsory or wanted.