I agree and I have used this argument.
Other questions;
Can DNA vote?
An egg and sperm are joined in a petrie dish, is that a human.
DNA from 3 people (it happened) are joined in a petrie dish, is that human?
DNA from a human and some other animal are joined (if it hasn’t happened it will), is that human?
Arguing the exception(s).
Interesting in debate, but should not be the basis of law.
IMHO...
Can DNA vote?
No, but neither can a 6-yr old.
An egg and sperm are joined in a petrie dish, is that a human?
Yes, still a human being, which is why there was a movement to ‘find homes’ for fertile eggs that would not be used by the ‘parents’.
DNA from 3 people (it happened) are joined in a petrie dish, is that human?
Yes, still human.
DNA from a human and some other animal are joined (if it hasn’t happened it will), is that human?
A question there, but if such a creature was ever born I doubt that it could be arbitrarily put down like we do with other animals. It would certainly become a legal case.