Well, "evidence" is hard to provide, but to (accurately) invoke the old saying "The plural of anecdote is data":
My older brother, his wife, and their son were all born profoundly deaf. I have a number of relatives that were born profoundly deaf due to an inherited genetic defect in my father's family line (which was identified by researchers in part by sequencing my brother's family's genomes--his wife is a distant relative)
Neither my brother nor his wife sign...at all. They both learned to read lips (they are in their 40s) so they could interact more fully with society. My sister in law briefly attended a university that is very popular among deaf culture and she left after one semester. She was ostracized because she saw lip reading as a superior alternative to ASL. She was ostracized because most of her friends were hearing.
The stories they have about their own interactions with deaf culture are astounding. To a great extent, they will have nothing to do with it if possible. My brother is a well-known athlete in the deaf community, and so he interacts with many more of the deaf than he'd prefer. Not because they are deaf, but because of their attitude. When my nephew was born, there was never any doubt that he would have a cochlear implant. At one point, they prepared to pay cash for it (50k+) because of a fight with the insurance company (this was ~16 years ago). When this decision got out, they received more scorn from the community for 'betraying' it.
They can regale you with stories about 'deaf culture' advocates angrily leaving restaurants when confronted with a waiter who doesn't sign. Or about the lack of grammatical structure in ASL, which leads to a serious deficit in the writing abilities of most signers.
The list goes on. That you aren't aware of 'deaf culture' doesn't mean it doesn't exist. And that it exists in not necessarily a bad thing. But technology has provided an amazing cure for this condition, yet instead of embracing it, they reject it as an assault on their culture. Can you imagine this from the blind community? Or the wheel-chair bound community?