>White Americans are descended from Europeans, and the post was talking about being proud to be white
White Americans have never experienced oppression in America. Full stop. Europeans typically are not racialized and do not identify as white, instead as Italian, German, etc. This discussion is obviously about whites in the US.
>Though I don't see why oppression is a requirement for pride - does achievement not suffice?
It's not an achievement when you spent centuries conquering, colonizing, and extracting everything you can from BIPOCs. When you start out so far ahead in a race it's not an achievement when you win.
>And "white fragility" is simply a way to dismiss objections without addressing if they are factual.
I addressed them, you're not factual. White Americans recoil to the facts that they created and live in a society that upholds their supremacy.