1. a vocation requiring knowledge of some department of learning or science: the profession of teaching. Compare learned profession.

2. any vocation or business.

3. the body of persons engaged in an occupation or calling: to be respected by the medical profession.

It goes on, but the rest have to do with "profession" in the sense of declarations.

So, you can make your claim all you want that you have the correct definition of "profession", but you seem to be mistaken...