That’s because we have a history of white supremacy in that country though. Similar to how in Germany you’ll get weird looks if you’re echoing nazi talking points; there’s an existing history and cultural context to that sort of thing in that country that the country now wants to not repeat.

When someone expresses black pride my interpretation is that they are reclaiming, trying to manifest and celebrate that they no longer live in times where being born black meant that you were a second hand citizen and that you should/could feel no pride.

When someone express white pride I can't interpret it the same way because there hasn't been a time where the structures were so that being born white made you inferior to someone born black purely based on skin color.

So the difference is the history and the context.

Is it doublespeak? It seems to me that we have Black pride but not White pride for the same reason we have Black history month but not White history month.

We don't have White history month because every month in the US is White history month. Same for Gay pride month but no Straight pride month. Or National American Indian Heritage Month, National Deaf History Month, and many others.