Ken Blackwell's Townhall.com column favorably comments on how 2nd Amendment rights enabled oppressed blacks to defend themselves in the Jim Crow south:
In his 2004 book, The Deacons for Defense: Armed Resistance and the Civil Rights Movement, Tulane University history professor Lance Hill tells their story. Hill writes of how a group of southern working class black men advanced civil rights through direct action to protect members of local communities against harassment at schools and polling places, and to thwart the terror inflicted by the Ku Klux Klan. He argues that without the Deacons' activities the civil rights movement may have come to a crashing halt.
...Following a KKK night ride in Jonesboro, the Deacons approached the police chief who had led the parade and informed him that they were armed and unafraid of self-defense. The Klan never rode through Jonesboro again. Local cross burnings ceased when warning shots were fired as a Klansmen’s torch met a cross planted in front of a black minister’s home. The initial desegregation of Jonesboro High School was threatened by firemen who aimed hoses at black students attempting to enter the building. When four Deacons arrived and loaded their shotguns, the firemen left and the students entered unscathed. It was this series of efforts by the Deacons that caused the Klan to leave Jonesboro for good.
Similar work in Bogalusa, Louisiana drove the KKK out of that town as well, and led to a turning point in the civil rights movement. Acting as private citizens in lawful employment of their constitutional rights, the Deacons demonstrated the real social impact of the freedoms our nation’s founders held dear.
...Gun control measures, from the slave gun bans of the 1700s South to the Brady Bill regulations of the 1990s, have unfairly targeted black Americans and have worked to curtail a disproportionate number of their constitutional rights.