""Hedwig was born a boy, had a sex change, and presents as female and uses a female name through most of the show. People use female pronouns to refer to her. John Cameron Mitchell uses female pronouns to refer to her."
Ok, so I actually was right then? "
In my opinion, yes. Hedwig is subject to interpretation like any work of art, and her gender is complicated, and I would say, non-binary (or genderfluid). Saying she's a boy and using male pronouns are certainly non-standard. I can see why someone might interpret the work that way, but it's an odd thing to correct the use of female pronouns and state she's a boy like it's a known, accepted fact. I'll keep using the pronouns her creator uses.