The 'black/coloured' thing pretty much sums up the general mindset of blacks. In the 70s-80s, we called them black. They complained that this was racist and wanted to be described as coloured. As soon as we comply with this, they change their minds and decide that's racist and want to be described as black.
Now we've complied yet again and started referring to them as black, they've started describing themselves as 'people of colour'... there is no pleasing them in any way. Whatever we say is 'racist', and if we change the terminology as per their wishes, they will then decide that that's even more racist. Personally I think we should stop listening to them and call them whatever we feel like calling them.
Apparently the only action taken by a white person that is not deemed as racist, is suicide. (Not the white women though... oh no.)