Yes, potentially, but I think it has more to do with the personal experience of individual authors within the context of their ethnicity (or sexuality or whatever) rather than constructed social identities. I'm not saying that societies don't try to create such limitations, but one can be free even in a cage (and how much better not to step into one in the first place).
Not in the land of do as you please. I am, let's face it, approaching a certain age now, so please forgive me for sounding like an old man. But when I went to grammar school, we put on a production of Macbeth in sixth grade and began learning French in third. We did three Gilbert and Sullivans in what was then called Junior High School; we understood the Victorian English and got the jokes. There were plenty of Korean immigrants among us, and their parents made damn sure their English was better than ours before the first day of school. The Jewish kids studied Hebrew while the rest of us watched the Flintstones. Those days, obviously, are gone. American public education has become tax-supported supplementary day care at best and woke indoctrination camps at worst. It is still, I think, fair to say that a student who cannot read Shakespeare in tenth grade (much less master reading and writing skills) has no business entering a non-technological English-speaking college. And yet.
Well, communities could help in principle--but communities have mostly degenerated into online Twitter mobs. Unfortunately the only solution I can see (I'm speaking for the United States only) is private education. That's unfortunate because it only contributes to the cultural divide that is already ripping us apart. Oh well, my migraine is almost gone now. Think I'll go read some Shakespeare.