It's not a comparison. It's an analogy. This is actually a pretty important distinction because analogies are vital for illustrating concepts in a more concrete

It's not a comparison. It's an analogy. This is actually a pretty important distinction because analogies are vital for illustrating concepts in a more concrete way; it's why we got drilled and tested on analogies again and again in school. But let me try again without making an analogy: Some percentage of people do X and therefore try to justify doing X. But another percentage of people think X is justified and therefore do X. You do not appear to make a distinction between these two cases. You lump the latter in with the former and then dismiss their views out of hand. This is such bad logic that I am beginning to suspect that you are are actually being a hypocrite here: that you dislike drug users emotionally, and so you are trying extra hard to justify that dislike intellectually, even when it requires blatantly fallacious reasoning. (And, dammit, here I ended up making another analogy, albeit hopefully subtly enough that you don't accuse me of comparing you to a criminal.)