Re-write 99% of rap and maybe I'd agree. 99% of films need dubbing as well.
We can't white/black wash history and I still don't see why other than the word 'slave' it's offensive because it's the context. And the context is 'we' will never be slaves, if you include yourself in the 'we' you have to agree with the sentiment.
If you don't associate as the 'we' then you are being discriminatory against all of those who stood before you giving you the rights you now claim are not being upheld.
Are we perfect, absolutely no and I can pick out examples, but in a democracy the majority rule and the majority have helped create legal equality so highlight the inconsistencies rather than broadstroking in a backhand discriminatory way.
And for me, for everything said above, that's what the BBC unfortunately do because they are too focused on giving everyone airtime rather than giving people the airtime to argue whilst under challenge and have a right to reply.
(to get it back on topic lol)