I pick up videogames quickly sure. But I don't coincider myself talented enough to become pro. With a lot of practice, I could surely become a high tier player, like most could, but a legitimate professional? Hardly.
I have met people with 7 thousand hours of game time who are low tier globals.
The amount of people who play 8 hours a day 6 days a week and don't become professionals is actually quite big.

Now the whole comparing basketball to CS.
Don't you think there aren't thousands of young guys practicing ball as much as they physically can, but not making it into the big leagues?
I'm pretty sure there are.

The reason I'm so harsh on the "everyone can become pro" is because I've met kids who literally told me that they want to quit school to start their pro career,
while not even managing to get global in matchmaking.
We don't have the same kind of professional coaching as we do in older sports so for young kids at home it's easy to think that they can go pro.
Most people don't understand the level difference at the top, how could they, and think that being LE (ALMOST GLOBAL) is enough to start preparing for their pro career.
A random MM player will never see the massive gap between actual competitive players and MM casuals.
And these kids then delusionally start just putting all their time in CS because nobody is there to tell them what the gap actually is.

Nobody needs to tell those kids that "everyone can be pro". They need to be sat the fuck down and given a reality check.