@Cyracuz,
Don't confuse being ambiguous with being unclear: for nothing to be ambiguous is for it to mean both something and nothing, which is perfectly clear, despite being heretical to you. Of course, at some level, or eventually, the two things are the same, since, at some level, or eventually, everything is everything else, which doesn't mean this happens at all levels, or all the time. For example, there is a level in which being and nothingness are the same, but in this level we cannot, for example, perform any mathematical operations.
In the end, you are just afraid about where logic will lead you, since they told you it would lead you to madness.
Take Russell's paradox: like many other paradoxes, it was never solved. Rather, they built different axiomatic systems to circumvent it, none of which was ever proven. The paradox stays there, as an eternal source of "concern." And why? Because it arises not from someone's belief, but from logical reasoning.