His comment was unforgivably sexist, and each and every one of the people defending him and nodding their heads is also sexist. The problem might be that he equates sexist comments with being sexist, period, instead of just the comment being sexist?

If he had said it without the disclaimer, I would've been like, "Wow, that's a pretty sexist comment!" When he added the note in order to protect the "hilarity" of his commentary, it took the comment to a much deeper level, which makes me think not only was the comment sexist, but that he, himself, is also pretty unapologetically sexist.

And an asshole.

This macro is appropriate: