"but I have a serious argument against it; it is called fumarole deficiency. "
Uh...no such medical problem. This came either from a blog or from some tabloid, right?
Here's the deal. Some idiot misunderstood someone who referred to a "familial" something deficiency. This idiot heard the word "fumarole," which is a hole in the ground that emits volcanic gasses.
Go Google your "fumarole deficiency." You'll find a silly message thread on it from some random website.
There is no medical condition called a "fumarole deficiency" because there are no "fumaroles" in the human body.
Random websites produce random results.