I would further say that you'd probably have to distinguish between a person being sexist out of negligence and a 'true' sexist. A lot of "white knighting" fall

I would further say that you'd probably have to distinguish between a person being sexist out of negligence and a 'true' sexist. A lot of "white knighting" falls under the first and can result in people who are absolutely convinced that they are being the exact opposite of sexist, while they can be just as hurtful.