Put simply, it doesn't interest me enough to put in the time required.
Not just here. I don't participate in PvP in most games that I play which have it, except occasionally in Battle Royale type games where it is the only activity.
Plus, in a "death" scenario where there's no actual loss of anything, people behave differently than they really would if there wasn't a respawn without losses.
I am a RL combat veteran, so that's not just gamer-life hyperbole.
Also, I am a bit late but Happy Veteran's Day to all the battle buddies out there!