I think you've made a crucial point of a racist (or audist) being either unconscious or conscious of their prejudice.
Yet when I tried to research the term 'dysconscious', I found a slightly different uses of the word. This Deaf blogger used the term more in the sense of
the oppressed person internalizing the values of the oppressors and being unaware of doing so. (Note: not
the oppressor being conscious of their prejudice.)
Guilty of Dysconscious Linguicism Part II : Shel: A Deaf Canadian's Thoughts
The next link defines it as
"an uncritical habit of mind (including perceptions, attitudes, assumptions, and beliefs) that justifies inequity and exploitation by accepting the existing order of things as given" which again puts it more in the unconscious
Is Racism Over?: How Racial Inequity Remains, Despite the Absence of Outright Bigotry | Suite101.com
Given that the word 'dysconscious' isn't widely accepted, maybe these differences of meaning are inevitable. But I think the idea that there are a range of ways in which we hold prejudices is both true and helpful. The reality of discrimination experienced by HOH/deaf/Deaf people is all too real even if the words used aren't widely accepted or agreed upon. I'm going to try and list them below using non-technical language:
CONSCIOUS AUDISM: A person who explicitly and consistently believes that having hearing and oral language makes a person superior
UNCONSCIOUS AUDISM: A person who consciously believes that both deaf and hearing people are equal. But underneath their awareness, their behaviour reveals their unconscious belief that oral language and hearing are superior (e.g. a hearing parent who refuses to use sign language for a deaf child who cannot hear speech)
INCONSISTENT AUDISM: A person who has a mixture of beliefs. Their overall belief may be that deaf and hearing people are equal, but will have smaller "sub-beliefs" or unexamined opinions that are audist (e.g. believes that deaf are equal as humans, but believes that oral language is superior to sign language. Or they find themselves treating a fluent ASL user who doesn't write very good English is not being as intelligent as a person who writes good English)
INTERNALIZED AUDISM: A deaf person who is unaware that they have absorbed the values and beliefs of audism (e.g. a deaf people who thinks he/she is inferior because he/she doesn't speak as well as a hearing person).
I hope this list is helpful. I'm more interested in highlighting the
actual experience of discrimination in its various forms than having a
solely technical debate about this or that word which distracts from the reality of discrimination.