Please tell me what exactly defines a human, then. What is the exact point in our history where you could say "that individual is a human" and "that individual is not".
Lots of things
Reproduction- humans cannot produce offspring with Apes
Behaviors- granted many will be similar to Apes, there are many things we do that they don't. Apes do not have a larynx adapted for talking. They also do not have the same mental capabilities as humans. Granted they can use simple tools and wash their faces l, but then again so can dogs.
Genetic- our DNA is different enough to make us different species. We also look different and have limbs adopted to walking upright ad opposed to climbing. We are mostly hairless, and Apes are not.
We are all primates, but humans are not apes
Humans are classified as great apes.
Your other points I have already refuted. So they aren't physically capable of doing things humans can do. So what? Someone from a village in Taiwan isn't going to be dunking basketballs anytime soon, does it really matter?
Dunking basketballs isn't the only defining human characteristic
But the desire/ability to do so for entertainment. As well as developing an entire structured game with rules and regulations that can be taught others( i.e. it is not instinctial) IS one of the things humans do that other apes don't
Unless they have documented gorilla games that I don't know about
Apes do play games, it's not exactly complex, but it's there. Just like with other human traits.
But it's not like an uncontacted tribe in the Amazon is coming up with anything complicated for recreational activities. We also have mentally impaired people who can't learn like most others do, or people who can't reproduce. These people are still considered human.
But I've conceded "human" was a poor choice of words. "Person" is more appropriate.
Dogs and cats play games too. But they are not structured like human games.
All humans are capable of doing this, whether or not they choose to do so. Remote tribes I'm sure have games and rules of their own.
For the case of the mentally impaired, just because they learn differently doesn't make them incapable of learning. Not to mention they have other trsits that make them human that Apes don't.