will back me up.

Natural ability does come into play in some instances, but it's in instances of genetic anomalies. Sprinting is one. I could have my kid spend 10K hours of dedicated practice attempting to become a world class sprinter and he still isn't going to make the US Olympic team. Something crazy like 95% of Olympic Sprinters all carry a genetic mutation that is specific to an upper highlands tribal area in Jamaica. Almost all of the olympic sprinters can trace lineage back to it. It's the same with distance runners and high-altitude regions of Kenya's Rift Valley and the Ethiopian Highlands. It's due to a genetic mutation that adapted that population to do something that "normal" people couldn't. There are also other examples to lesser extents like mutations that caused abnormally high VO2 Max capabilities in certain areas of Nordic regions.....but these examples are the exceptions, not the rules and they only exist because of genetic mutations.

For things like golf, chess, guitar, etc literally anyone can become a world class participant.

For things like basketball, height obviously is a factor, but not one that can't be overcome. For every 7 footer in the nba, there are a multiple of players under 6'4" that play in the league. Some of those people are "naturally athletic" and speed or jumping comes more naturally to them vs. others, but both speed and jumping can be taught and gained over time. Contrary to popular belief, pretty much any reasonable fit 16 year old boy can be trained to have a 35" vertical and a 4.5 sec 40 yard dash time with a couple years of training.

So, yes, in general your point of natural talent being part of the equation isn't wrong....but it is about 10% of the contribution to greatness for almost all activities minus the ones effected by genetic mutations.