Well non-consensual doesn't necessarily imply unconscious. There are levels of force that could be considered rape, although some countries has laws on the books saying only women can be raped. I don't want look that up for proof at the moment, as I'm sitting at work.
Where did his parent mention unconscious? He specifically called that out, so I responded with "unconscious isn't the only form of rape, and what people might call rape isn't always legally rape".
His question was a fallacy, I just pointed that out.