Back in the time of Reddit, I saw someone complaining because, after joining a table that expressively required only good-aligned characters, he couldn't buy slaves at the market.
His logic was that slavery is not morally wrong by itself, and that he would treat the slave well.
He got tons of upvotes for that one, and I lost yet another small speck of trust in humanity.
At least I misremembered the number of upvotes. He got a few, but not many (although, because of how Reddit works, it's not possible to separate upvotes from downvotes, so he could've gotten a lot of downvotes and an even greater number of upvotes). Granted, the fact that that comment was in the positive still makes me sad...