This is what I intended to post; thanks for sharing your experience. I'm a gay Indian male living in Canada. I have never experienced marginalization for being Indian, but at my previous engagement, I experienced quite a bit of harassment and discrimination for being queer. Until that point, I didn't think much of what female colleagues were going through but began to notice a slew of inappropriate remarks (most famously: "Are we sure he's not post-op? I thought only women get migraines." from the CEO) and discriminatory behaviours (boss 'rating' female colleagues with the general response of nervous laughter).
I think that you hit the nail on the head - many people have to either directly experience or observe these issues before they become legitimate. The author has been extremely fortunate.