I appreciate your perspective and your work with those who have special needs.
I resonate with your argument on how people with Down Syndrome view themselves and the world, although I don't believe that they don't realize their differences. Instead, they work within their differences to do what they can to live their dreams and even be ballerinas if they have the means to do so.
You will always have an advantage over a person with Down Syndrome. Sure, people with Down Syndrome can receive assistance and care (catering) for their well-being, but the world isn't designed for them to thrive and some places - like Iceland - are eliminating these types of people totally.
Comparing the fact that you can't be a ballerina or that you're unemployed to people with Down Syndrome who are employed and ballerinas to show that the world caters to them is a reach. Your options for work and leisure are far more expansive than anything they could ever hope for. Of course, you can be a ballerina. It only takes paying someone to teach you. And you have not only the ability to find work, but the option to be an entreprenuer, create income on Steemit, etc.. The comparison to what opportuities they are afforded to those that you are afforded falls flat.