I told you what the line is: would a "reasonable person" be fooled or not? It has nothing to do with companies vs. politicians. You are using the word "fabricate" to cover a huge range of different things. Like "oh, so it's OK to kill your fears, but it's not OK to kill a politician!? Hypocrite much?" ... no? You've only made it sound hypocritical because you used the same word for both.
I should've spelled it out, but I used politician for a couple reasons. One of the reasons is that whether a reasonable person would think that was actually true is no longer relevant.
Look at the batpoop behavior of some very prominent politicians -- you can't distinguish that from parody. And look at the level of critical thinking we're seeing, with huge numbers of people believing things we think a reasonable person would consider improbable or seek confirmation.
In this environment, I assert that the defense of "a reasonable person would realize this is parody" is no longer true.