Sure. I made up you saying that there was a way humans were
supposed to be.
If a human is born without arms then their objective genetic design is one without arms.
Norm in this context means average, not a
wrongness. The blunder continues to be yours.
No. No boom. Humans born without arms are still objectively human.
Wants are subjective. That's obvious isn't it? A person born without arms might
want arms,
wish they had arms but objectively they don't have arms because for one reason or another their blueprint, i.e. their DNA, didn't code for arms.
Statistics speak on averages. Not what is
supposed to be but what is
likely to be. Maybe you need to retake that statistics class. You sure you weren't sitting in a philosophy class instead?