It's all three, but did want to point out that your claim that
> It's obvious to see how there could be non-Republican-friendly results of faculty being easier to fire for, say, a controversial twitter post.
contains within it the idea that not being fired for a controversial twitter post or even free speech generally are either concepts that help Republicans or concepts that Republicans believe in, neither of which are true. Not for present day Republicans, historical Republicans, idealized conservatives or any shade of right wing thought except for a tiny insignificant rump of libertarians.
> It's obvious to see how there could be non-Republican-friendly results of faculty being easier to fire for, say, a controversial twitter post.
contains within it the idea that not being fired for a controversial twitter post or even free speech generally are either concepts that help Republicans or concepts that Republicans believe in, neither of which are true. Not for present day Republicans, historical Republicans, idealized conservatives or any shade of right wing thought except for a tiny insignificant rump of libertarians.