Im just pointing out that if the Government can put enough trust in me not to drink and drive then it should trust me not to shoot people with a firearm. Especially since drunken driving kills more people each year than guns.
so because drinking is legal despite being detrimental other detrimental things should be allowed as well?
Owning a firearm is not detrimental. Neither is drinking alcohol. It is what you decide to do with them which can cause problems.
what has war or slavery to do with civilists killing each other with guns
Simple. You claim that civilians owning guns is bad. I am making the point that if Blacks would have be allowed to own guns there would have been no slavery. I guess you are stating that allowing slavery is better than allowing gun ownership.