This is something that I would like to have your opinion on?

I am not sure whether this is a systemic problem or a problem with a group of professors. After writing an essay in one of my prof's cl and encountering a problem with him, I was stalked over campus, hared, given death threats, and accusations that I was "mentally ill". I was ostracized by my friends who suddenly turned cold on me, and two of my professors ganged up against me. One of my friends hinted to me that I was being put in a "thought-reform"/reintegration project because someone held the allegation that I was "racist" and that my professor did not agree with me on certain topics in cl. To be honest, I have never said anything in cl that was racist at all, nor wrote anything that was against the government. How can I deal with this situation, and not fear that this problem would cross over to another university that I will transfer to?