Friend obsessed with looks, makes me uncomfortable she asserts authority over how I look?

My friend is obsessed with looks and she said a girl looked very Australian. I'm not sure what she meant by that. It seems to generalise a large population with a vast array of ancestry. She says I look super Irish or British even though I'm mixed with other nationalities like Welsh and Swedish, danish etc

I find it uncomfortable she feels the need to say these things which are factually untrue

Friend obsessed with looks, makes me uncomfortable she asserts authority over how I look?
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