As a white American who identifies non-binary, no. It can potentially help you understand overlapping concepts, but it’s a fundamentally different experience to be ‘unusual’ in a cultural context you mostly share than to be an outsider in the cultural experience you inhabit. Even though I prefer they/them pronouns I can conveniently be male, with my beard and my masculine presentation, for any situation that warrants it. Even if I couldn’t I’m being evaluated as a member of the same community. I’m only othered in situ. The only reason other nationalists (in Orwell’s usage) would care to take notice is to exploit divisions in situ or divisions between how their “nation” regards my gender expression and how ours does, for whatever value of “ours”.
Edit: I wrote this kind of in a rush and I feel remiss that I didn’t address “overlapping concepts” more: this is at the root of intersectionalism. Some of the experience of every marginalized group is similar to the experience of other groups. Recognizing those similarities is really valuable especially among people marginalized in different ways. I don’t mean to dismiss your recognition either, because this is a good instinct to have. My point is it’s different, even though it’s similar. But its similarity does matter as you’ve recognized.
Edit: I wrote this kind of in a rush and I feel remiss that I didn’t address “overlapping concepts” more: this is at the root of intersectionalism. Some of the experience of every marginalized group is similar to the experience of other groups. Recognizing those similarities is really valuable especially among people marginalized in different ways. I don’t mean to dismiss your recognition either, because this is a good instinct to have. My point is it’s different, even though it’s similar. But its similarity does matter as you’ve recognized.