I agree they have a liberal list of past speakers
Is the list complete? Probably so, but it might be misleading if it is not (for all I know Reagan or who-knows-who has been left out).
It completely does not surprise me that people at a school might protest the choice of a commencement speaker. It would surprise me very much if conservative-leaning students/faculty never do so. Really they should! Are the conservatives on campus such sheep??? Do conservatives not go to college???
Also, I don't get why this is rude. Sounds like the clear voice of American liberty, to me.