For comparison, here is a question with very similar construction qualities
Let's take a look.
The comparable question you offer is this:
Because science is by definition a "theory"--not testable, observable, nor repeatable. Why do you object to creationism or intelligent design being taught in school?
That question is answerable.
I'd answer it this way: First, science is not a theory. Science is a method. Second, I only object to creationism and/or intelligent design being taught in public schools in the United States because public schools in the United States are funded by a government (or governments) having a tenet that no religious test will be required as a qualification to any public trust, which to me means teaching religious concepts as valid is illegal. Also, and not to get tedious, "intelligent design" is a religious construct insofar as I'm concerned.
Viviane,
If, as you claim, the question you posed is comparable to the one I asked you then the question I asked you is answerable.