Lol wow you wasted a whole lot of time rambling on about nothing.
You transitioned your argument to focus solely on 2 places USA and Brazil because taking in world statistics proves you wrong.
But you fail to mention that the most popular sport in America that has 26.5 million players ...
https://www.sfia.org/press/433_Over-26-Million-Americans-Play-Basketball
Only has 1900 playing professionally and semi professionally
So unlike your entire point that they have to compete with Basketball, the contrary where there is an abundance of Basketball players that could transition.
Fact is, majority of the popular sports that house big guys provide a greater number athletes who can compete in MMA than take away from, but the idea that if LeBron James didnt play basketball he'd be a MMA fighter is pretty dumb, majority of people do not want to fight in a cage as their profession, even if they are exceptionally athletic.
Thanks for playing ya goof.