What sidewalks are you talking about... That is just one instance of misguided outrage to drive your confirmation bias. No one has context for your sensationalized news story.

If people started attacking other people for being Gluten-free, and the government saw that there was a large amount of cases, they would create regulations trying to curtail the amount of crime targeting those people. They are creating regulation with the intention of lowering crime targeting a small group because it is atypical.