These aren't Bernie supporters!  Stop spreading that lie.  This was the PSU student union and the MEChA group. 
MEChA is a national chicano/a student organization that strongly objects to Donald's "wall", his advocacy of mass deportation, and his generally offensive and racist characterization of Mexicans.  There isn't a single Bernie hat or shirt in the photos.  They aren't holding Bernie signs or posters.  They are protesting against Trump and his anti-hispanic rhetoric.  
Bernie supporters should be called out when they step out of line, same as Trump's supporters or anyone else.  But these protesters are neither supporters of Bernie Sanders, nor are they out of line.