I think if you're handicapped in that way, you have two choices. You can:
A) Choose to be an equal among humans. She lives, she breathes, she has the same ability to succeed in life as everyone else despite her handicap, and in all aspects of life she should not be given special treatment due to her disability. This would mean that she should happily accept the cheerleading squad's decision with the hope that someday someone will reward that kind of understanding and attitude with a bitchin' job or something.
or
B) Demand special "accomodations" for her disability, accept everyone's sympathy and accept being treated as inferior her whole life. If you want people to accommodate you, you should not have any shame in admitting you require accommodations because you are inferior.
Its a tough lesson, but you can't have it both ways.
Or she could, you know, get a ton of money, STDs, and self esteem doing amputee porn.