The exploding meth lab one does actually have a point, as that is a legitimate problem (though in many ways it’s an unintended consequence of cracking down on pharmaceutical abuse of amphetamines). All the other ones are silly, though, relying on not entirely apt metaphors or just silly premises. The frying/smashing eggs spots seem to imply that drug use will automatically and absolutely inevitably cause irreparable harm, which studies, such as Nutt (2010) from The Lancet, show isn’t necessarily the case, even if significant risks do exist for some of the harder drugs. The “would you trust your doctor if he smoked pot” one is especially disingenuous; sure, you don’t want someone with such duties toking up on the job, but we’re perfectly fine as a society having alcohol as a legal substance, even though we (rightly) prohibit doctors and other such professionals from being under the influence when on duty. The “slavery” one is downright offensive, considering studies show that blacks don’t use drugs at any higher rates than anybody else, yet they are much more likely to be incarcerated for such offenses and to be punished disproportionately, contributing, in part, to their poorer social outcomes. The “new slavery” seems more to be our laws and, even more so, the selective enforcement of those laws, not so much drugs themselves.