I concede that my analogy may not be perfect, but the points I'm trying to make are, thus.

A person who had one Chinese great-grandparent can say that they are part-Chinese, they can say that they are a bit Chinese, and they can produce a a family tree diagram to prove it.

If I sit down to steak, potatoes and vegetables, I eat with a knife and fork, however, if I sit down to a Chinese meal (which has to be gluten-free) I prefer to eat with chopsticks. Just because I can eat with chopsticks doesn't mean to say that I can say that I'm "a bit Chinese" any more so than a person who finds certain sounds or certain textures of clothing annoying or uncomfortable can say that they're "a bit autistic". And just because you like Chinese food or certain Chinese customs doesn't mean to say that you are a bit Chinese.

The other point I'm trying to make is, autism is not linear in its presentation, it's more like a line graph on a pie chart. Okay, that might sound contradictory, but my point is, you can't say, "That person is 20% autistic." High functioning means "You don't see my struggles," low functioning means, "You don't see my talents." Everybody's sensory profile is different.