In terms of slippery slopes, this argument is climbing atop one. Where does that end? Should we ban doctors from performing surgeries that would save someone's hearing? Should we ban protective gear that might diminish the size of the deaf community?

It's simply a horrible argument to suggest that you have to protect a disadvantaged community by making sure they don't shrink. There's much better ways to be respectful of the great human beings these people are.

I said nothing about banning performing surgeries or forcing parents to carry out a deaf child just for keeping some community alive.

I just wanted to point out that there is a path from "would like to prevent" to "stop everybody who does not match the profile from living".

The other responses in this thread already show in which bad light people look at deaf people. Maybe start talking to some of them.