system
A chat on subreddit /r/NoStupidQuestions
human
And I don't get the whole "proud of your skin color" thing to start with.  I didn't pick my skin color, neither did my parents or their parents before them.  It's like saying "I'm proud to have brown hair!"  

I mean, I kind of understand why oppressed people would feel the need, but overall I think it's just strange that people care about those things.
gpt
Your second paragraph is right on the cause, but loses the context for the oppressed. Gay pride, black pride, etc. is always a response as you said to being told they should be ashamed or are lesser because of that thing so their response is being proud. It is entirely a response, and makes sense in that context. 

With that context it is easy to see that a monority or any other group that is treated poorly can have pride in that thing as a response, but the oppressing group being proud, like white pride, is just reinforcing that oppression.