No. "What makes you think?" is a reasonable phrasing. It's a direct question and it's not mashed up in jam on a teaspoon to make it easier to swallow, but it is *not* rude.
If CKE had said "WTF are you talking about, you must be insane to think that's a girl!!" then
that would be a problem. But all of his questions have all been in a polite, business-like tone. You're an adult and should be capable of accepting direct questions without candy-coating or eggshell-walking.
As an objective observer: you
are being vastly oversensitive, and you
are choosing to take offence at something that simply isn't there. Please let it be and take some time to critically assess your own emotional response to this issue, rather than blaming CKE for your reaction.
~Chrisell~
Proudly Australian
www.archaeochrisell.blogspot.com