Just today I've caught myself talking about black boxes, no skin off my nose and Chinese whispers, wondering if those are on a list somewhere or if they will be.
I'd say it all feels like papering over the cracks, but the paper isn't even covering the cracks.
From what I've seen you can play the racism, gender or (in a lesser extend) religion card. That is because in that case you're clearly part of a group - and often a minority. It is however unclear if the ones who feel offended are also a minority within that group (but does that matter?).
In other cases that is less clear, but I've also not seen many people offended for other reasons than the three I mentioned.