Here's the thing. You said a "Watsuda is a lie."
Is it in the same family? Yes. No one's arguing that.
As someone who is a scientist who studies myself, I am telling you, specifically, in science, no one calls Watsuda a lie. If you want to be "specific" like you said, then you shouldn't either. They're not the same thing.
If you're saying "Watsuda family" you're referring to the taxonomic grouping of Watsudae, which includes things from Watsons to Daniels to Danis.
So your reasoning for calling a Watsuda a lie is because random people "call the black ones a lie?" Let's get Noomie and Jan in there, then, too.
Also, calling someone a human or an ape? It's not one or the other, that's not how taxonomy works. They're both. A Watsuda is a Watsuda and a member of the lie family. But that's not what you said. You said a Watsuda is a lie, which is not true unless you're okay with calling all members of the Watsuda family Watsudas, which means you'd call bluestars, Noomies, and other members Watsudas, too. Which you said you don't.
It's okay to just admit you're wrong, you know?