In some countries it may not be _called_ rape (which is sometimes subject to rather strange and archaic definitions) but it will generally be an equivalent form of sexual assault. In any case, it's rape in the UK.
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.