I bet those DHH adults were raised by hearing parents who pushed them into spoken language with the exclusion of ASL, you can tell because you refer to them as deaf not Deaf. I doubt they ever have been exposed to the DHH community so that doesn't really make their choice a choice nor does it counter the vast majority of DHH parents with DHH children who choose ASL. I don't understand why you'd support a method that excludes sign usage. It is an antiquated and debunked idea that using sign inhibits spoken language, on the contrary it enhances it for those who choose to also use speech. I also don't understand how you can keep stressing teaching DHH "listening". Like DHH can do everything except for hear it's not something if we just try harder we'll get. And it's kind of insulting that you've co-opted listening to mean what your oralist program teaches. We listen visually by being more aware of our environments than hearing people, by picking up on body language and facial expressions, by understanding people signing. Yes I have HAs but I know how to listen without sound and can't be taught to hear any better or more clearly than my amplification provides.
It reminds me of when I've had to use a wheelchair because of a spinal cord injury I sustained from the same autoimmune disorder that caused my hearing loss. There's a lot of value placed on walking again for people with SCIs, to the point where some people's lives revolve around being able to walk, which the vast majority will never do. Their entire self esteem is placed on something their bodies don't do. When I started living my life to the best of my ability just in ways that accommodated my wheelchair I was happier and more successful than those who believed they only had worth if they could walk again. This isn't much different than the idea that DHH need to be taught to hear and listen to be successful and valuable. There's so many ways for DHH to do this without fighting against the one thing our bodies don't do.
Even with amplification and CIs we don't and never hear like hearing people like yourself. Do you really think you're teaching DHH kids to hear the same way you do? Like I said in another post, when I get home from work my ears hurt from my HAs, I have a headache from the effort it takes to understand verbal language around me, which even then I never will be close to understanding the majority of it, I have to rely on other cues to contextualize what I can make out. Then responding with speech of my own takes just as much effort and thought. I'm almost 30 years old I've been doing this for decades and it sucks. I want to be able to use sign language instead but I was exposed to SE, SEE 1 and 2 made up systems that I can't get an interpreter for. I cannot wait until I feel my ASL is at a completely fluent level (which a part of me is worried might not happen unless I get accepted into Gallaudet's masters program and I can be completely immersed there on campus). Out in public at the end of the day I sometimes don't even bother to try to use verbal language. It's not something I learned to do when I was 6 and now is a natural skill for me as a grown woman. Every single day of my life since I was 5 years old is has been a huge burden and a huge effort only to feel like an outsider from both the hearing and Deaf communities.
Why do you insist on pushing this burden and difficulty onto DHH students? If you're convinced some DHH want to hear and talk like you, you should at least support teaching all kids bilingually, with ASL and English. If speech is better than ASL most of your students will choose verbal English then right? But at least you gave them all the tools possible.