Cats has made when of the clearest and most useful contributions to this thread.

I would simply make the point again; Some people are uneasy and some people are offended when white people black up.

People may have blacked up for a long time for reasons we only have some undertsanding of. In this country, now, we spend less time thinking about how cultures can offend each other than I think we need to. I suggest no offence would be caused by rainbowing up.

Mike Morris also makes good points and yes it is a two way thing. Men of many faiths and cultures treat women badly and I presume we spaek out when we think it matters and we might have some effect. None of us think that rainbowing rather than blacking will change anything much but we choose to make this point amongst many others.