Just try displaying an "offensive" item and see how fast they will come after you. And today, everything is "offensive"--we are in the very last days of freedom, just before we all get microchipped and enslaved. All of our culture is being taken away from us, and we will not know where we came from, where we are going, or how we connect with the universe. We will be mindless drones, just as the greys are.
Race? No need for racism when everyone is the same race--grey. Everyone will be so mixed (and degraded) that the parent races, starting with white, will go extinct. These acts of violence and rioting will continue until this condition is reached. Obviously, the last thing they want is police that actually adhere to the constitution (or, in other nations, decency). Rather, they want to have Noahide Law strictly enforced. Try breaking that and see how fast the cops come.
Better would be to audit the laws, find those stupid laws that go against nature, and abolish them. Drug use should still be illegal, but with the penalty being simple confiscation of the supply of drugs (the big pushers, on the other hand, would receive extremely draconian punishments because they are the ones responsible for ruining lives). And those that are tyrants should be fired and severely punished--they did, after all, take an oath to uphold the Constitution, and if they are tyrants, they broke that oath.