This isn't about political correctness. It's about a practical consideration of the impact of language usage supported both by anecdotes from community members and academic studies. The defining quality of the "color of the bikeshed" discussion is that it makes no practical difference — but there is a difference here. When you say "bikeshedding," what you really seem to mean is "something I don't feel the impact of."

You should consider that just because something isn't important to you doesn't mean it isn't important to someone. A commit like that doesn't measurably hurt you or me, so even if it only helps someone else moderately and in a way we don't entirely understand, it is still net-good. This isn't political correctness; it's objective practicality.

Everyone is allowed to be ignorant, the problem is people who are not ignorant but simply dismiss issues as "unimportant" because they are unaffected. It is not the original committers fault that you and so many other people don't care about (or in some cases object to) gender neutral language, and bikeshedding is best stopped not by leaving the bikeshed unpainted but by you and others who fjnd it unimportant shutting up and not objecting to the damn color if you don't care about it. Be the reduction in trivial arguments you want to see in the world.

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.