You're saying that freebase cocaine isn't "cocaine, the drug", but chlorides and sulfates are? It may be relevant to this discussion that salts dissociate in solution, but maybe it won't convince you because it sounds like you're steering painfully close to "the sun goes around the earth because people say 'the sun rises', and therefore it doesn't make sense to talk about sunrise on Mars."
That is, it sounds like you're trying to bend over backwards to invent a coherent meaning to impose on the utterances of people who are just confused and ignorant, with the result that your own utterances are losing meaning. The reason people say things like "crack isn't cocaine, the drug" and "coca leaves don't contain cocaine" isn't that their utterances refer to some coherent entity called "cocaine, the drug", which consists of some arbitrary collection of cocaine salts but excludes the hydroxide. They're just wrong, because being wrong is a thing that people do a lot, especially when they're talking about things they don't know about, like chemistry.