While I have empathy, the reason we're in the state of recognising and intervening with neurodiversity is the work that educators, parents and researchers have done over the past sixty years. Pleae recognise this for the progress it represents.
People do the best with what they have and what they know. No it's not your fault. Neither is it your parents or teachers when they don't have the knowledge or tools to help them. There is a solid chance that they were as lost, frustrated and confused as you. Or they're simply shitty people..
In 50 years time there will be another condition that we don't know about now, for which we are not providing accommodation, which causes kids harm, that your kids will look back on and be absolutely shocked, like why the fuck was this ever tolerated and how could we not know. Obesity? Usage of social media? Assessment?