Someone in Congress said, "Is AI gonna be good, like the printing press, or bad, like nukes," which was a hilariously naive historiography.

4 to 8 million dead: https://en.m.wikipedia.org/wiki/Thirty_Years'_War

If you read the GPT-4 technical report you can see that the unrestricted model (that people could be running at home) are capable of some pretty large-scale horribleness.