The most common preference is somewhere between a Captain America movie and a John Wick movie, I think.
Folks who can't stand to see real violence wish it just didn't happen, the way I wish street fights didn't happen. But you're not gonna get anywhere offering what an MMA fan understand as an inferior product. And the MMA fans know there's karate and wrestling and BJJ to watch, they just aren't as interested in it.
I don't try to rationalize it much. I know most people, especially in the circles I'm in, can't stand to look at it. I don't mind that.
The idea that society has moved past the need for violent spectacle or something just doesn't work for me, because I enjoy the sport. And plenty of other people do, too
Fighters for the most part are going to do what will make them the most money. If the fans are there for knockouts, they're gonna go for knockouts. If BJJ tournaments offered the same money making opportunities that MMA does, a bunch of fighters would very happily switch