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Diotrephes Some states had laws that prohibited non-whites from possessing firearms. And that made it much easier for the KKK and others to intimidate them and deprive them of all their rights.
Like with all our rights, city, county, state and the federal government selectively protected or ignored those rights, and it many cases the selection was used to suppress. But that doesn't make the rights themselves flawed. It makes the politicians scoundrels flawed. Actions by the government to selectively not protecting the right to vote, to assemble, to protest, to be judged by a jury of peers, to possess a firearm all had enormous horrible consequences on Black Americans, Hispanic Americans, Native Americans.
It wasn't just slave patrols. It was the US Army that hunted down slaves or put down slave rebellions, and even later, after the Civil war, when Blacks protested. One deadly rampage took place in the 1890s just 3 city blocks from where I grew up. Or research what happened at Wounded Knee. It was a botched attempt by the US Calvary to disarm the Lakota.