White is not a self identification category except among racists, or in situations in which white people recognize the privilege they have in a Euro and Anglo centric world. Further white is a category that has changed over time, for example in the US, Irish immigrants were not considered white at first, then Italians, then sub continental Indians (who had to lobby for non white status), etc. No one is proud of being “white” unless they’re a Nazi, it’s simply a category that one uses to recognize their privilege. historically It was a way to differentiate from “others” though I didn’t live at that time so I don’t know how much of a part of self concept it was outside of very segregated societies like the antebellum south.

TRAs have co-opted this sympathy, that’s their “in,” because many people haven’t throroughly thought about why minorities or other groups make the demands they do. They rather just acquiesce without let’s say, reliving the horror of the slave trade or Japanese internment camps, or massacre of North Americans. I think many people acquiesce without thinking and therefore the TRA demands seem just as reasonable, even though it was a mental illness a few years ago.