Channel 4 has just announced a series talking about sex/relationships etc. with regard to disability called "Undateable".
Edit: I should have made it clear that I am not only talking about the channel 4 show here but the 70% of people who wouldn't shag a disabled person (from an observer survey through @lisybabe).
For me the term "undateable" itself is highly pejorative and insulting. It may not have been meant to suggest that someone with a disability and/or life limiting condition is in some way less worthy of love but that is outwardly how their advertising appears to be selling the show, that we have less worth within a relationship or are harder to love, though this may be trying to be ironic all it does is perpetuate a stereotype that is just gross and unacceptable.
In my opinion, having to deal with adversity is a commendable trait to have, in fact it often makes someone more emotionally mature, sensitive and capable of having a long term relationship and being more understanding.
In my eyes there's nothing quite so off putting as someone who would be so judgemental as to rule out a huge swathe of the population for dating purposes. Honestly, I find it really unattractive as a personal trait.
Some people might be into blonds or bums or people with glasses, choosiness is fine, however completely excluding people based on one unchangable aspect of their life really says more about the person doing the excluding than the ones being "excluded". I don't believe that it can be classed in the same way as sexual orientation, if you don't find disabled people sexy then fine but if you actively exclude people entirely based on this one part of who they are then you hardly come across as emotionally mature.
Maybe the dicks who are so judgemental as to not be interested in someone with a physical or mental issues purely on that basis are truly the "Undateable" ones!