A key element that's lacking seems to be the principle of charity: seeking a sympathetic understanding of an idea presented, and interpretation of ideas in their most persuasive form.

I don't believe I've ever seen you do that. You might care to give it a thought.

http://philosophy.lander.edu/oriental/charity.html

I'll through your questions back at you:

How is Greek Fire unlike a hydrogen bomb? How might considerations of these be different? What else that shares elements of what a hydrogen bomb is, or does, still substantively different in a way that would not require some sort of regulatory treatment?

Why is it we pass laws, generally? What are the hallmarks of a good, or a bad law?

If I convince you to harm yourself, that's a predatory action.

We have laws of various forms making these actions illegal. They may not be federally regulated, but could probably stand to be, especially when it's done at scale.

Who needs protection of the law in those situations? The emotionally exploitable or the unethical salesman?

What we are talking about is passing a law that says your data can't be used against you.