> the next time someone describes me as white

Yes, but as Zed correctly construed (imho) it depends on the phrase getting burdened with negative connotations. If a few people started using "white" to indicate someone with a small brain and bad body odour, I suspect many white people would then react differently to the word.

That's why I don't think this is 'PCness taken to extremes', and why it is important to recognise how a word feels to the recipient.