I feel like our focus on the 20th century really limits our understanding of the depths of human depravity.
This is an image of two Assyrian soldiers forcing a captured Babylonian to grind the bones of his family.
And you might say "Wow, that's a really mean thing to say about the Assyrians!" No, this is them bragging about doing it in immortal stone form.
This wasn't printed out on a laser printer, it wasn't etched using a laser engraver. It probably took weeks or months to lovingly create this work. They were really proud of their depravity and wanted to share it with the world.
When people say getting onto mastodon is hard I assume they must mean setting up an instance because even if soapbox and rebased are easier to use, it's still just signing up for a website.