Murder rates in US have very little to do with gun law, and they have very little to do with skin color, even though they're heavily correlated to the latter and weakly correlated to the former.
Compare the USA to Canada, where you can't bring a gun easily. You'll see Canadian murder rates being very low. Even controlling for similar factors at the city or neighborhood level.
Of course I'm blaming the gun: it's pretty hard to kill someone with other weapons. Stabbings are often survived, even.
I assert again it is not the gun laws even if you want to do a national level view. Even a national analysis of gun laws in the three major countries of North America do not yield the conclusion you assert.
You are cherry picking to try and find causality while damning a comment where I merely pointed out a correlation between black people and murder rates. This is hypocrisy.
When you started to look at underlying causes at crime, you were so very close to getting there, but for some reason disengaged from that and went back to our flawed basis that would suggest it's the black pigment or it's the guns causing it.