Whether Crhistian symbols are on allowed on campus would depend on whether it's a Christian school, or a public school where students of various religious beliefs, or non belief should not feel intimated by overt Christian symbols.

Whether they espouse the bigotry and endorse the cuts that hurt our nation's most vulnerable as do the faux Christians of today's GOP, who do not follow Christ's teachings. 

Are you really pretending the Trump "Christians" do not practice bigotry against gays, are not racist, do not want to integrate their personal beliefs into our laws (our own jihad), and don't support the guy who lies consistently, and brags about groping women?