Because not everything can, or should be usable by all of the population... Should all countertops have adjustable motors to change height before you can sell a house? Someone who is 6'7" tall can't really use the same counters comfortably as someone in a wheelchair.
The fact is, nothing is, has been or ever will be completely fair. And that's okay. Everyone makes decisions based on their environment. Most accessibility laws are only applicable to organizations of a certain size, which isn't even most
You're arguing scale, and I agree that it's probably not possible to make everything accessible (not until we get those brain-controlled robots, anyway ;) ).
But if the question is "Where do you set the bar," we already have laws for that. Are they too many?
I think in some cases yes, in others not so much... I mean in Cali, there are places that literally don't have a restroom for customers because of risk of suit over buildings nearly half a century old.
For others, maybe not as much. In the end, it's a balancing game, and I keep seeing discussion (especially political) lose all sense of nuance or negotiation.
The fact is, nothing is, has been or ever will be completely fair. And that's okay. Everyone makes decisions based on their environment. Most accessibility laws are only applicable to organizations of a certain size, which isn't even most