It is rather sad you have been downvoted, but alas in these PC days, not surprising.
You are of course right, the audience here, of all places, should seek further education, and whilst pointing out the horrors of slavery, should not take the simplified modernistic version of suited Westerners sailing over, grabbing a boat load of locals and sailing them back for work. It was and is far more complicated than that. There is a reason it was called the 'Slave Trade' for a reason - the locals were more than happy to sell their bretheren. That is probably the saddest point of it all.
Well, sadest is that slavery still exists in most of the world, and yet we seem to consider it a relic from the past.
Well, sadest is that slavery still exists in most of the world, and yet we seem to consider it a relic from the past.