We are taught that the Atonement saves us from Adam's transgression, but I think too often we fail to see that this must logically include the effects of the Fall - which include the random physical, emotional, intellectual, spiritual, etc. "disabilities" with which we each are born. Some people are born with emotional disabilities that, for them, are just as debilitating as any physical or mental disabilities are for others - but we have never said they were more righteous in the pre-existence. By making a special case of someone else's disability, we are, in effect, denying (not making allowances for) our own - and that is a scary, dangerous path.
In my opinion, we simply need to stop separating people based on biological attributes that are beyond their control (and that we are told are covered by the Atonement) and start seeing and treating them all as equals (because of the power of the Atonement). This means we stop elevating some and not elevating others - that we accept all as fundamentally flawed in some way, but possessing the same eternal potential. That is not a "natural" reaction, and it is not easy, but it's what I believe the Gospel teaches.