Oh, I get it alright. People with hearing impairments are expected to fit into a perfectly hearing world at all times and if they don't (and can't, despite what is believed by too many), it's OK to hurt a disabled person for the crime of being irritatingly disabled.
Let's just try this with some other disabilities. What ones? OK, we'll try Psoriatic Arthritis. Some people are prescribed methotrexate but find the side effects intolerable - exhaustion, vomiting, vulnerability to infection, liver damage, death, cardiac issues, cancer, hearing loss and tinnitus. And if they want to have a child, they just can't take it because it's teratogenic. So women (and men) who wish to have a child will cease taking it. But that can mean experiencing a flare. A flare can be extremely disabling both physically and psychologically, as uncontrolled inflammation can cause changes in mood completely unrelated to depression or any mental health condition. Which must be quite annoying for a healthy person when s/he is unable to walk for miles or stand up, do some decorating, hold a cup without spilling some of the drink. They've stopped taking the medication that can be perfect for some, but isn't for others, so 'they're not helping themselves'.
It's OK to shout at them when their partner is pissed off that they're not bouncing around like the Duracell Bunny or hurt them by refusing to let them sit down because it's their own fault their joints hurt.
Cancer? They don't want to have a particular treatment because they've done it before and can't face it again. So it's OK to shout at and abuse them because it's their own fault they're in pain?
Hyperemesis gravidarium. It's their own fault they're feeling so awful because they just won't have it terminated. It's an absolutely 100% guaranteed cure for the condition. Tough luck, get on with that housework. You just won't help yourself.
Broken ankle, can't walk without crutches. But the crutches cause pain in the hands and the shoulders when using them all day. Get your lazy fat arse off that sofa and do the washing up, you'd be able to stand up in front of the cooker if you used the crutches for another hour when your shoulders and hands are more painful than the broken bone. Move it, you're not helping yourself - you're not getting food or drink brought to you because it's your own fault and you're really irritating when you ask if the other person could make dinner.
No wonder there are so many in the d/Deaf community that think 'fuck you all' when there are threads like this justifying abusing somebody for being deaf or hard of hearing.