I like this argument. At a less lethal level it works for guns as well. WW2 taught that you can’t drive countries to the point of having nothing to lose. A potentially positive spin is that we advancing to societies that prevent this from happening to individuals. Though the cost...
The first sentence is comparing to the vast array of "less" lethal weapons modern police are equipped with with and how they seem to be more willing to use them in situations where they wouldn't be willing to shoot someone.