Last year we had huge protests in Brazil. They were sparked by police brutality against a tiny, routine protest in Sâo Paulo. That thing spread to every other m

Last year we had huge protests in Brazil. They were sparked by police brutality against a tiny, routine protest in Sâo Paulo. That thing spread to every other major city in the country. Some state governments decided to send the police to the protests, some didn't. Guess what: where there were no policemen, the protesters went, did their thing, and no violence or damage to property was reported. Where there was police, the protest always escalated, and always in the way you decribed: the police sets some random arbitrary limit, the huge mass of uncoordinated people do not follow their orders, police attacks. Take from that what you will.