I think this is overly reductionist. Winning is fun, of course; nobody goes into a game with the intention of losing. But equating losing with human misery is a stretch. Most people playing games aren't miserable after a loss, at worst they're tilted after a tough loss or a losing streak. If losing were inherently the cause of human misery, we wouldn't be sending our kids to play organized youth sports for multiple generations. Or played chess for thousands of years.
I've been playing fighting games a lot recently, which is a pure skill-based 1v1 genre, and going up against people better than me who beat me is fun, not miserable. Obviously the ideal outcome is to win, but getting stomped by 6-time Marvel vs Capcom 2 world champion Justin Wong doesn't make me miserable, it makes me want to improve.
I'm not saying it's for everyone, I have friends who tilt off easily at every loss and yeah they shouldn't play ranked at least, but as long as your attitude is "you win or you learn" you won't be miserable.