This is something that isn't even remotely close to being proven or scientific. It's really just anecdotal and passed down, so to speak. As others have pointed out, it does not make any logical sense for a number of reasons. But odds are if you were addicted before, and you start up again, you will be addicted again. "Worse" is such a subjective term, I'm not even sure how someone would quantify that.
It seems pretty clear that time off from drinking doesn't magically transform you back into a moderate drinker, but that's about as far as I would go.