[lutusp]

> Surely you’re not trying to draw some conclusion between an entire countries modern day medical field and a theory a person proposed in the 1800s, right?

That would depend on whether anything has changed since the 1800s. But that's very clearly not so -- consider that recovered memory therapy (https://en.wikipedia.org/wiki/Recovered-memory_therapy), based on as much science as drapetomania, was practiced in the 1990s, and still has adherents today.

Also, for human psychology to be regarded as a medical field, it would have to be based in science. But human psychology studies the mind, therefore by definition it's not based in science.