Earlier quoted context omitted.
Every language has something dumb about it that makes it "not a great choice for a global language". English spelling is a nightmare, but the grammar isn't too bad, and most importantly, it has no gendered nouns .
That's silly. Gendered nouns seem difficult to you, as an English speaker, because you speak a language that doesn't have them, and not because they're inherently harder than any other language feature.
It's not the concept that is difficult, it's the extra piece of information that makes it more difficult.