De-escalation is an important tool in anyone's belt when it comes to handling erratic behavior. However, my question is more looking at how we actually expect these positions to be filled with actual people. Who's going to jump at being a cop? Someone who favors de-escalation, or someone who favors violence?

As always, politics is downstream of culture. If every movie cop for the past 100 years had been a Jimmy Stewart aww shucks goody good, maybe we would be in a different place. Instead we tell ourselves (and therefore the next generation of cops) that policing is a macho violent profession, then recruit ex-soldiers to do it, and finally give them Pentagon-surplus equipment to do it with.