Perhaps I should have said "as a general rule" since I'm sure there are exceptions, but that is absolutely how those two phrases have historically been used.  Denying that is absurd.  The notion of "black pride" is a direct response to whites telling blacks, either implicitly or explicitly, that they are worthless because of their ethnic background.  Conversely, "white pride" is most often used by neo-Nazis and the KKK.

They are not the same thing, and asserting otherwise is denying history.