Well, I wouldn't want to donate to a charity that had systems in place to be too white and privileged in the first place.

If it's dominated by white and privileged by chance or by natural consequence of competence factors, that's one thing, but if they're admitting they did something naughty by sacking them all, that's clearly an admission they were all the ists and isms. I hope they go bankrupt, showcasing their evil by firing those people.