Earlier quoted context omitted.
Professional sports are all about entertaining the fans. If they can live a gladiator's life and ask "are you not entertained" and want to die in the lions den, then might as well let them. Amateur sports like colleges or olympics could continue to have the traditional rules to keep things "competitive", but might as well let the pro-sports just go full tilt.
If it's really about entertainment, then it has no appeal. Then you end up with professional wrestling. Professional sports are interesting because there's something fundamental, something challenging where someone's skill can shine.
Do you not see the contradiction here? Professional wrestling is huge. It has very loyal fans. The fans pay for pay-per-view and live event sales. They buy merch. Nobody attends a WWE event expecting Greco-Roman style wrestling. They all know exactly what they are getting.