But then wouldn't the phrase I was referring to, "100% of it is written by lobbyists" be categorically false because it specifically emphasizes the percentage and therefore the claim is false? If they had said that sometimes phrases or even whole bills from lobbyists get introduced I wouldn't have quibbled with it.
While the phrase has become used more loosely, I believe (could be wrong, of course) that it is best used to explain that the cause of being false is a category error. It's like the distinction between a type error and a value error. In this case, I'd say it's a value error. The value 100 is false, not the type, because we know that a nonzero amount of prose in legislation is indeed written by lobbyists.
Ah okay, this was really helpful, thanks! Not quite as bad of a language faux pas as when I was a kid and thought 'per se' was persay but I'm glad to know the difference