>>14859They're not really equivalent. A gun is a tool, and criminals exist regardless of them. Ultimately the ones you want to prevent from using guns are those who are already committing crime, not the law-abiding. (Well, at least ideally, but let's not get in to 'true motivations' today...) And on top of that, the fact of the matter is, a criminal can still kill you in a myriad of other ways with a range of other tools.
Abortions are more comparable to drugs, if anything. Though lacking the addictive quality is liable to remove the 'drive' to continue using them, of course.
Banning drugs does lower their use; We can see that to an extent with the areas that have allowed for weed, for instance. It's just that banning something doesn't mean it goes entirely away.