Kensei, I heartily disagree with you.
Just because someone has different views from societal norms does not mean they have mental problems. I hear they stopped classifying homosexuality as a mental disorder in the 90s - obviously, it was just society waking up, not it suddenly becoming 'okay'. Just because someone's asexual does not mean there's anything wrong with them, at all. If they WANT to have a sex drive and they can't get it on, -then- there's a problem. But if they're perfectly content, there's no problem.
Just because you're married and haven't had sex in 17 years means nothing. Some people's marriages are based on sex, some are based on a mixture of sex and other things, some are based ENTIRELY on other things! Who are we to determine what's right for another marriage?
And just because you're a 20-year-old guy who doesn't like sex does not mean there's something wrong with you. Just because society and the media drill into our heads that we have to be raving sexual dynamos at that age does not mean that it's true.
Asexuality MAY be a choice - if you're not asexual, you really can't claim to know. I'm not, I don't claim to know. All I know is this girl says it's not a choice, it's how she is inside - don't take away her identity.
I urge you to look at
www.asexuality.org before continuing to say that it is largely caused by abuse or brainwashing. They have a great deal of info there that may be illuminating.
Of course - feel free to your opinions! I just object to you labelling in one fell swoop all those who identify as asexuals as mentally deficient and calling it a negative thing.
Cheers!