I think this is the way many hearing parents feel, but this was not our reaction.
We were already doing "baby signing" with Miss Kat when her loss was discovered, at 18 months. We knew that this was a way she could communicate easily, so we just kicked it into "high gear". We sought out Deaf adults, asked them what their familes did, and what the wished they had done. We got the same answer, again and again, "I wish they had signed with me from the start."
So we decided to continue with ASL, and ignore the professionals who told us that she would never talk because of sign (turned out she couldn't learn spoken language with her aids, so imagine how SCREWED we would have been without ASL!) and do what was right for her.