The sewer called Fox “news”

[Cyrano]

2. Monitoring them is one thing

but stopping the diseased ideas and thinking they spread is virtually impossible.

"Freedom of the press" gives them the right to do what they do.

But at what point are they "crying fire in a crowded theater"?

That's a hard call to make. And it's one that lets them go on spewing out their venom to poison the minds of those who just don't "get it," and never will.