A Marquette University professor was suspended and banned from campus after he defended a student who wanted to debate gay marriage in a philosophy class.

John McAdams took to his Marquette Warrior blog to defend a student who was called "homophobic" for making arguments in support of traditional marriage.

Todd Starnes reported the following on FoxNews.com:

Marquette University seems to be sending a message to students and faculty who support Catholic doctrine regarding marriage: if you oppose gay marriage keep your mouth shut.

In November a teaching assistant berated a student and told him that he could not say anything against gay marriage because it might offend other students – and that opposition to gay marriage could be considered homophobic.

“You don’t have a right in this class to make homophobic comments,” teaching assistant Cheryl Abbate told the unnamed student.

John McAdams, a tenured associate professor at the school, was the first to expose the incident on his “Marquette Warrior” blog. He wrote a scathing commentary about Abbate and staunchly defended the young student.

“Like the rest of academia, Marquette is less and less a real university,” he wrote. “And when gay marriage cannot be discussed -- certainly not a Catholic university.”

McAdams soon discovered how true that statement was. On Tuesday, he was placed under investigation, suspended and banned from campus.

“You are relieved of all teaching duties and all other faculty activities,” Dean Richard Holz wrote to McAdams in a letter. “You are to remain off campus during this time.”

McAdams, who has taught at Marquette for 37 years, will maintain his salary and benefits during the inquisition.

He was not told why he was under investigation or why he was suspended – but he suspects that Abbate accused him of harassment because of the blog post.

“It would be odd to be charged with harassing someone by reporting something accurately on my blog,” McAdams told me. “A lot of politically correct faculty have wanted my head on a pike.”

The university released a statement to television station WITI about the professor’s suspension – and referenced their policy about harassment.

“As stated in our harassment policy, the university will not tolerate personal attacks or harassment of or by students, faculty and staff,” the statement read. “To be clear, we will take action to address those concerns. We deplore hatred and abuse directed at a member of our community in any format.”

McAdams was asked this morning on "Fox and Friends" about being sanctioned by a Catholic university after he expressed a viewpoint that is in line with Catholic Church doctrine. 

He said even though Marquette is a Catholic-founded institution, you wouldn't know it if you were there in the classrooms.

"The reality at Marquette and a lot of supposedly Catholic colleges is that the faculty is often pretty secular, pretty liberal and pretty politically correct," he said.

McAdams said he objected to the philosophy student being told that he was a "homophobic" for disagreeing with same-sex marriage and seeking to debate the issue.

The professor said the attitude among liberals is if you don't agree with us, then "shut up."

"A key thing about political correctness they don't want to argue issues. They basically want to shut up the other side. Any arguments we don't like are sexist, or racist or homophobic, so shut up," he said. 

McAdams said he plans to go to court to fight the penalties imposed on him, including having his classes for spring semester canceled.

"They're facing a tough legal fight if they really, really want to get rid of me."

Watch the discussion above.