Professional sports are anything but healthy, as soon as competition is even remotely recognized and praised illicit drugs come onto the scene.
As for a more idealistic world and my choice, I never even hinted at trying to legislate your ability to do what you want, but if you want me to clap and jump up and down and pick a favorite team because a bunch of grown people make ridiculous sums of money doing absolutely nothing for our future, well, count me out.
I get it, it's comfortable to be in a vocal majority. I understand that in many conversations I'm not welcome if I don't have a favorite team. Humans are tribal creatures. Being in a majority doesn't give you some right to an unopposed position. Just because most everyone around you will agree with you doesn't make what you're doing right.
If you would like to define some criteria and have a discussion about whether sports makes this world a better place I will gladly show you the fault in sports.
Also to the person commenting that you could say the same for any type of entertainment (regarding it being useless). That couldn't be farther from the truth. I love aquaponics, for one. Finding new interesting ways to feed people is entertainment for me. It's not uncommon for people to enjoy creating and learning. That type of entertainment becoming more prevalent could have a significant impact on our future as a species.