Everyone seems to be outraged that he was 'on the street'. Maybe they should be outraged that he was in the country. You can let fanatics in your country and then try to follow them around 24 hours a day to make sure they don't do anything crazy or you can just not let them in in the first place. You end up transforming your country in either case.
It is not that he was allowed on the street, it is that he was allowed to vote. You let him transform your laws by voting and transform your law enforcement by creating a new class of citizens that are to be 'free but followed'? Why not just keep them out in the first place?