I think this can be expanded on somewhat.
Most ethnic races have cultural celebrations of some kind, whether related to marriages, or something else, for e.g. Diwali for Hindus. It doesn't celebrate race as such though, and I think that as a generalisation, "race" celebration isn't needed anyway.
I think to be passively (somewhat privately) proud of your ethnic roots is okay, but showing aggressive pride is pathetic, and this is the part that most people seem to fall into.
imo it is an unfortunate factor that race pride among whites is done very aggressively as a result of racial insecurity and National Socialism (and also among American blacks too for that matter but as a result of anger for the slavery).
Generally, I think the white pride thing is taken negatively because for example, if a black person celebrates Black Pride it is not to show that they are superior, it's to show that they're EQUAL, and this is because of the slavery etc in the past.
With white pride - how is this pride thing justified in a white context? How have whites been enslaved and scrutinised against as much as non-whites around the world have over the ages? I dont mean to sound racist I love multiculturalism, I love all races and find everyones culture fascinating.
I'm not saying that whites have no right to celebrate their culture - but their COLOUR? What the fuck? Again, they haven't been condemned for their colour.
On another tangent, I do empathise with Scandanavians for example - a minority celebrate their Viking and Pagan heritage, and I think this is good. I don't see Christianity as their real culture, their true ties are to the earth, forests and mountains, not the Church.
Anyway - everyone is human to me at the end of the day. If people can respect themselves and the different people around them as equals, that is all that matters. Diversity and respect is an important key to knowledge and appreciation.
Apologies if any offence is caused by my post - it's merely an observation.