They're differently abled, duh. Not 'less', nonono - we can't hurt the feefees here. They're just as able as people, but differently. Somehow. REEEEEEE On a serious note though, I think it would still count as disabled. It's not what the human body is intended to be like, just that it's a very common thing. If more than half the population had their left leg blown off by tomorrow, it would still not be normal for the human body to only have one leg.