I've witnessed the same. Police responding with overwhelming force. Unfortunately, we're not unarmed like in Japan (or most of the UK), so there have been instances of police being caught off-guard and killed for being too "chill" so by policy they must respond with almost worse-case-scenario.
With that, I will say they need to learn how to use less than lethal tactics and force to apprehend a violent person. Firearms should be very the last resort as a result of non-confrontation. In other words, the police at times provoke more violence by the way they address an issue. A violent drunk. Instead of getting up close so they lunge with a knife, get far back, get people to move away and then corral the drunk in or use alternate methods of subduction and use lethal violence only when the perp makes it necessary.