I recall instances where they fought slavery by capturing slave trading ships, freeing the enslaved, and given them freedom and the opportunity to join them and fight the assholes that captured them in the first place. The history of Nassau is pretty interesting.

The hilarity of it all is ego of the Western social justice movement.

By most estimates there are more slaves today than in any other point in history and it's almost entire in Eastern Europe, Asia, and Africa. Instead of helping those people, putting sanctions on the countries and companies turning a blind eye on slavery, or even acknowledging that slavery is not history but an ongoing condition - the West spins its wheels changing language in highly unrelated fields.

The absurdity of it all is something out of Camus.

> Hostis humani generis (Latin for "enemy of mankind") is a legal term of art that originates in admiralty law. Before the adoption of public international law,[when?] pirates and slavers were already held to be beyond legal protection and so could be dealt with by any nation, even one that had not been directly attacked.

* https://en.wikipedia.org/wiki/Hostis_humani_generis