As an adult return student in college currently, while I could engage in "free speech," the college is also free to expel me for creating a hostile environment

As an adult return student in college currently, while I could engage in "free speech," the college is also free to expel me for creating a hostile environment for my views (I'm speaking generally here). Everybody hates Illinois Nazi's. But if a group them sprouted up at your school, can you really say it's fair freedom of speech-wise to shut them down at a publicly funded institution? No you can't. Not only that, but instructors can at whim grade you based on if they like you as opposed to legitimately getting good grades. Ultimately it just creates a system to be gamed by those wise enough to survive it. It's never been about education in the US. It's always been about "who can navigate the waters without getting labeled."