These same Marxist agitators turned their backs on the brutally repressed people of Venezuela and want the narco-terrorist dictator, Nicolás Maduro, released and placed back in power.
I think the "why" is pretty straightforward ...
1. These vermin are not students ... they are mindless Marxists who HATE the United States of America, Classical Liberalism, and Western Civilization and are paid to agitate in support of such hatred.
2. They are genocidal racists who HATE Jews and the State of Israel - the only democratic state in the Middle East.
3. Iran (and all terroristic mooslim nations and organizations) is the enemy of their enemies. Iran supports the murderous terrorists of Hamas, Hezbollah, and the Houthis - so these mouthbreathers who like to occupy college campuses support these terrorists with their protests, as well.
4. These smelly reprobates are not only paid to agitate by their fellow Marxists (i.e., Soros, the DNC, etc.), but, in fact, Iran sends them financial support, too!
They are part of one, big rabid family of Statists, Socialists, Marxists, Fascists, Anarchists, Communists, and mooslim death cultists with fanatic hatred for individual freedom, Christianity, and Judaism at their core.