Luke 22:36b Jesus is saying: “…if you don’t have a sword [weapon], sell your cloak and buy one.”
Another often-heard quote (I’m not sure of the source), paraphrased: The best way for evil to prevail, is for good men to do nothing.
My philosophy is that if we give in to those who would take our lives, then only the evil ones will be left alive. Sorry, that is not acceptable.
Sooner or later, your pacifist friends will be overrun. Truly bad people have no conscience and there is no reasoning with them. So make your plans accordingly. God gives us brains, and in this evil and broken world, death comes to all. Just make sure it doesn’t come too soon.