I'm not sure about that.
It is true that there is a dominant culture that is in ascendance which puts very little value to no value on human life. I personally believe this to be indivisible from the modern Left.
Their answer to an aggressor (buglar/rapist/murderer) is that a plebian should simply be a good victim and give them what they want. In effect putting the aggressor's life over the victims, and they've twisted and contorted the legal code to match as the various absurd cases of such people suing their victims for X, Y, or Z shows. At least for the plebians, the elite naturally have armed guards.
Their answer to an inconvenient human life (unwanted child/relative on life support) is to terminate it. Their answer to environmental issues is that humanity and technology is the problem (despite more industrialized nations taking much, much better care of their resources then less developed one) and to put a human life below the value of an animal. When something goes wrong it's somebody else's fault. They are although Peck didn't mean them specifically when he titled his book such, the People of the Lie.
The opposing culture holds different values. They may choose to arm themselves so that they are capable of preserving their life or anothers from great bodily harm. Not just from human aggressors either, even in the city you have animals like large dogs that are serious threats to an adult let alone a child. They tend to be self-sufficient, responsible for their own actions, and occasionally rather creative. These same features however make it so they have less need for the government and for better or worse don't have the same vested interest in hanging off the politician's every word. Rush Limbaugh once upon a time termed them the Silent Majority.
I'm not sure what you mean by death in that context. To put a person down I assume, but I'm not sure. Well to be blunt the human body is not designed so it can easily be shut down, less lethal (usually incorrectly referred to as less-then-lethal despite the fact they can also kill given the right circumstances) methods at this point in time are primarily meant to dissuade an attacker. They cannot stop a determined person or one that is on enough drugs. To stop such a person requires to cause massive system failure which is death. Killing the person however is not the goal, the goal is to neutralize the threat and while sufficient force needs to be used to accomplish the task, excessive force is no looked on kindly by a jury. As a matter of fact I know of at least one CCW program that teaches their students to immediately initiate medical care on the person they just shot after they're no longer a threat. There is however a phrase that reflects the fact that they're not about to risk their lives to preserve that of an attacker:
"I'd rather be judged by twelve, then carried by six."
Ultimately if there was a better way of pulling the trick off the Police Officers would not be issued sidearms.