The definition of disability would be in play here. YOu are not disabled as human beings if you are deaf. You are, however, disadvantaged and disabled when competing in the hearing world. As such, your ability to overcome the challenges of "fitting in" to the requiresments that the hearing people put on you are limited. Even CI users and aid users, and oral Deafies are sometimes on the fringes of conversation, because speech reading is still necessary sometimes. Speech reading is not always good in hard situations, like a multi-person conversation, when people are talking at the same time. ETC.
This being the case, you still need the services provided by ADA, becuase without them, you may never have good access to the job market and society as a whole.
I have absolutely no qualms about providing funds for the deaf. I also don't kid myself that CIs can make you a totally hearing individual... there are limitations to what they can do.
My current ASL teacher is and has been oral for about 50 years. Even after all of these years of practice, she still struggles with oral communication. She prefers sign, but she can rely on oral skills to a degree. She is VERY highly educated. And, if she struggles with it, it is only reasonable to assume that those who are less educated, and have less years of practice might experience the same limitations as she does. The same goes for speech reading. Even in the best of circumstances, speech reading can be hard. Certain words look the same on the lips, and people are not trained in how to speak to someone who is speech reading. Their diction sucks sometimes, and they jumps subjects or topic, they use puns or humor that make no real sense making it hard to follow a conversation.
I personally hate the term Disabled, because that denotes a person being broken and not capable of performing its reason to exist... ie, a disabled car can not take you anywhere. Ears are only one part of a person. People don't exist just to talk and hear. People can still be very complete individuals and an asset to society, even if they have limits.
So,, I chose to think of the term LIMITED>