I am speaking English as a second language, and my native language does not have gendered pronouns, and the gendered pronouns bother me every day, I cannot make myself blind to them.

Then again, if his native tongue also has gendered pronouns (as it appears to do), he should be aware of the issue, not because of English, but because of his native language has the same issue. Well, perhaps his native language user community has not yet started the same discussion, though.

Tbh I'm a native speaker and I've messed up gendered pronouns more then once in my life. So don't feel too bad ;)