No one asked about that. It appears that my question answered your question but the answer went right over your head.
It didn't look things have certain attributes that make up a thing. It's how we can know that a blank of wood is a plank of wood or a door is a door etc. It's why people would look at you funny if u started calling a hedgehog a cat or a bunny the empire states building.
And it's not that things done have attributes that overlap for example two humans have alot that do but we have enough different that on some level people recognise that we are distinct from one another.
So with the idea of unicorns god u and me. Having certain qualities stripped a way, the conversation is no longer about us.
For example say if u said hey tarasan has two wings, scales and can breath fire. Most people would say that isn't tarasan, that's a dragon.
This is the issue with the unicorn bit of you take away the attributes that make a unicorn a unicorn then it becomes something else