The "issue" is entirely about money. Sports make so much money because so many have fun watching them. And it's an issue only if you want fame so badly as to make an issue of the fact that what you do is anonymous.
Good point, but I would argue more people are unfit for math, than unfit for sports education. (At least in europe)
"There's no mainstream cultural recognition of scientists and science itself"
With the exception of Einstein yes. And maybe Stephen Hawking.
"The issue is entirely cultural."
And yes it is, but I believe this can be changed by making math, the language of science, more approachable.
For me it was a self enforcing effect where it also impacted how I viewed myself and I did not feel confident enough socially.
Obesity is one of the few remaining social stigmas that are "acceptable" to joke about. I don't think the average person know how it makes you feel when people passing you in the street look at you and make comments or try to avoid you.
There are so many micro aggressions that happens where each stare, laugh or comment just breaks you down mentally and isolates you socially.
Yes, that is sadly often the case. My advise if you want to change something, find acticities that are fun. Everything with water is good, if you are overweight, but it seems, you likely would not like the public swimming pool. But there are offerings for water exercises especially for obese people. Being in a group helps ignore what others think. Otherwise there are hidden lakes for example. (Or get a private swimming pool if you have the funds)
Otherwise a (enforced) trampolin might be fun.
Good luck to you.
The issue is entirely cultural. Entrepreneurs, celebrities, socialites are venerated, scientists aren't. There's no mainstream cultural recognition of scientists and science itself, at best people get attention who monetize research.
Just compare how many people know Musk but don't know who Tom Mueller is. (https://en.wikipedia.org/wiki/Tom_Mueller)