your advice about using guns to de-escalate is literally illegal and dangerous advice, at least in america. see my other comments in this thread.
you should consider reading this article (warning: NSFW, CW: SV, SA), it has a slightly different focus than this conversation but has tangentially relevant insights imo. no one is saying not to train martial arts
good thing thats not what i recommended? did you not see the beginning part where i said ‘anything you will consistently train’ and later specifically mentioned judo or aikido if you are worried about legal issues harming your opponent?