Do any of the following hurt the human race greatly either?
ADHD
Tourettes
ADD
OCD
Autism
All of those disorders get in the way of a person's day to day life, be that by impeding social interactions, learning skills, or general self control. By and large, a person's quality of life is reduced by having any of these disorders.
Liking richard doesn't do anything but stop you from reproducing, and if you're going to call that a disorder you might as well throw in everyone who's ever used a condom, birth control, or gotten a vasectomy or similar medical procedure to stop themselves from reproducing handicapped too.