Obvious trolling, but the slave trade and child pornography probably wouldn't be down with most libertarian principles. The core I've seen from most libertarian

Obvious trolling, but the slave trade and child pornography probably wouldn't be down with most libertarian principles. The core I've seen from most libertarian folks is "Do what you want to yourself, but don't harm other people." Slavery and child pornography are fairly obviously harming others. Heroin is trickier.