You do realize the word has a meaning?
“an illness or condition that disrupts normal physical or mental functions”
Generally people are born with 4 limbs because that is the normal, if you are born without them it’s abnormal you need to use words to classify things, the world operates on the norm… it wouldn’t make sense to make all cars be only able to operate for people who were born without limbs
Saying that, just because you have a disorder doesn’t make you any less of a person, anyone that thinks that is a moron.. basically don’t get hung up on a word, you had no choice in your biology/birth you just got what you got
They way you describe it as being oppressed or marginalized you are gonna be well on your way to always being a victim if you want to frame your worldview that way