I'm going to flatly state that while I currently live in a relatively high crime area I do not carry any weapons, firearms or otherwise, on me at any time. I do not harbor any kind of action hero revenge fantasies and my first choice when ever I have been faced with the prospect of physical violence has been to try and deescalate the situation followed by attempting to flee.
I will also add that I spent a good part of my youth living in an area of Oakland, and before that Houston, that was brutalized by a bizarre concoction of gang violence and police corruption mixed with a healthy dose of community apathy.
With all that being said I find your comment extraordinarily naive, paternalistic and offensive. To suggest that citizens, especially those of communities that have been systematically disenfranchised both socially and economically, should feel shame in defending themselves from criminal elements that seek to prey on their condition is absurd.
I certainly don't celebrate the death of another human being and hope that we as a society can find non violent ways of addressing grievances, but to conflate self defense, even when it results in unfortunate death, as bloodlust is insulting.
I usually tend to refrain from drawing conclusions about a poster's personal background on the basis of comments since it's rife for misunderstanding but in this instance I find it hard to bite my tongue. You sound like the product of an extraordinarily privileged life. Perhaps not Gates or Zuckerberg levels of privilege, but privilege nonetheless. The type of privilege were you viewed the police as friends of the community, the type were you didn't have to fear being shot, or stabbed, or bludgeoned, or run over multiple times (something that actually happened to a childhood friend) by the gangs that controlled your neighborhood. The type of privilege were as a child you could be outside after sunset, the type were you didn't have to run from the bus stop straight home every afternoon to avoid being jumped.
The funny thing about privilege is that those who are its biggest beneficiaries are often the least aware if its existence. To suggest that those of us who didn't grow up with the privilege of safety from having physical violence visited upon us or our families and friends as a regular occurrence should view the idea of self defense, even when resulting in death, as being ethically or morally ambiguous represents an almost sociopathic level of delusion.