Not the disabled in themselves, but the Taxi vs Uber (and other similar services) shows what happens once you put regulation over regulation over regulation on a system. It eventually becomes so poor, that unless you have the resources and influence of New York City, the system eventually becomes useless and expensive to the point it may as well stop existing.
Taxis were a luxury people would use to go to the airport if they couldn't find someone to drop them off, or if they were stranded drunk on a populated corner, and avoided at all cost any other time.
The disability acts in many countries have created situations of "if the disabled cannot have it, no one can", like ebooks in schools, and this.
It really sucks when shit happens, but is it really a better idea to make everyone lose out? If its we as a society needs to take better care of the weak, then its society (the government, taxes, municipalities) that should be responsible for doing it...not private entities that are trying to create new ways of doing things (beyond what they pay in taxes). You can give incentives to nudge them, sure...but don't go trying to kill services that are genuinely helping some people live a better life just because they're not helping EVERYONE live a better life.
Contrary to popular belief, your life isn't perfect the moment you're not a black female blind paraplegic.