He's clearly talking about abuse. He didn't tell Peter to throw the sword into the trash, or beat it into a plowshare or a fishing knife.
The point was more that I could have picked most any verse I wanted to make the case for whatever I wanted. Or, even better, pick selected ones, or excerpts:
Matthew 27:5
"And having cast down the pieces of silver in the temple, he left the place, and went away and hanged himself."
Judges 9:48
"... What ye have seen me do, make haste, do as I have done. "
Yes Jesus said "Go into all the world and preach the gospel to every creature." 300Magnum interpeted that to mean he must preach the gospel to every creature when he is working as a police officer, not when he is acting as a civilian.
I don't want an Imam/policeman trying to convert me to Islam when he is amed, has me pulled over by the side of the road, and has the power to take me to jail, should I displease him enough. I don't want a neo-Nazi/policeman trying to convert me to the Aryan Nation under those circumstances. I don't want a Wikkan/Druid/Wahabi/Hindu/Shiite/Athiest/policeman trying to convert me under those circumstances.
Since I am commanded love my neighbor as myself, I would argue that others should be shown the same respect for their right to life, liberty and the pursuit of happiness as we would like to be shown.
Salvation and grace are a gift of God, not to be shoved down one's throat as pill for a sick cat. Maybe he would be more successful preaching God's Word when helping someone in need than when citing someone for a violation. Just a guess.