I think sometimes some people don't want to be seen as weaklings or they just don't want others to see them otherwise, so they'll rather not choose peace and logic over war and conflict.
I had a particular post where someone came called me "stupid and referred to me as an idiot" on something that was completely resolvable, but I just let them go because wanting to satiate myself would have meant choosing to call them a goat or a useless person, but I let it go.
Choosing peace sometimes can be very uncomfortable, especially since you want to avenge yourself and make the other person feel what they've made you feel, but it's always better not to.
Ukraine was the victim of war, and Russia pulled all the plugs, but somehow I think their president is somehow guilty of a lot of things.
RE: Why do some people choose war over diplomacy?