some traits give you certain advantages in game that matter way more than others, and variations in these traits means some people are born with a higher ceiling than others for certain tasks
intelligence cannot be meaningfully measured but it obviously exists and varies between person to person, is that not undeniable?
natural selection is evidence for talent, literal genetic advantages that improved or decreased survival to a meaningful extent
esports can be considered a similar selection, where those with higher genetic ceilings for the right skills are selected to become tier 1 professional players (provided they put in the work to cap out their inherent potential)
yes, I agree that we are all talented, but not in the same ways as you say, and that matters because we are talking about one specific game called valorant where a specific skillset matters and others are much less relevant