That ended with me finally explaining to him how the way he and my mother treated me as a child, with undiagnosed (and really not even conceptually understood at the time) ADHD caused me lasting trauma that persists to this day. I’m a 45 year old man, and I cried.
The problem is people like you grew up in a time when things didn’t really need to get done like they did in your parents time. Their generation didn’t have the luxury, yes luxury of being treated differently because of shortcomings like missing a limb or being ND. They had to get things done to literally survive.
So to their generation, saying you can’t do something because of ND over and over again starts to sound like nothing more than an excuse.
If a blind person can do xyz, what’s your excuse as someone with ADHD?
There is literally no way to tell the difference between someone who has ADHD trying to do a task like clean the kitchen (and failing) and someone who simply doesn’t want to do it.
This is the core of why people doubt people who don’t have visible disabilities: there is no way to tell if you’re just faking or not.
Once you realize this, working with NT ppl becomes somewhat easier.