Read about this if you want to know about japanese pro wrestling
https://en.wikipedia.org/wiki/Puroresu
TLDR: There's three main schools of pro wrestling in the world. American is focused on story and theatrics, Mexican (lucha) focus on in-ring acrobatics, and Japanese which focus on looking as much like real fight as possible. In fact, a lot of japanese pro wrestling is booked in the same time with actual MMA match, and a lot of japanese pro wrestlers are actual MMA fighter.
Not saying that American pro wrestler isn't tough. They're tougher than they look. I don't actually watch pro wrestlings, but people who make fun of pro wrestling because they're "fake" generally are people who thought they're "smart" for figuring it out but don't actually know much about it. in 1998, there's a miss and Mike Foley got dropped 20 feet into the ring, and received, according to wikipedia article, "a concussion, a dislocated jaw, a dislocated shoulder, a bruised kidney, a gash in his lip, and had one tooth knocked out and another broken." People on the ring side genuinely think he's dead. Yet he get up, and finish the match. And that kind of thing is relatively common. But Japanese pro wrestlers are more often genuine martial artist.