A group of students from the graduating class at the Johns Hopkins School of Medicine are calling for the replacement of Dr. Ben Carson as commencement speaker for the class of 2013 following his "deeply offensive" comments on marriage equality and other issues.

In a letter obtained by Media Matters, eight members of the school's class of 2013, including a co-chair of the school's LGBT organization, ask their fellow students to sign a petition describing Carson, a neurosurgery professor at the university, as "an inappropriate choice of speaker at a ceremony intended to celebrate the achievements of our class."

The letter has been circulated across Hopkins School of Medicine, School of Nursing, School of Public Health, and other institutions, according to a signatory.

Carson, who has become a celebrity in recent months among the right-wing media, has come under fire in the media and from members of the Hopkins community since comparing gay relationships with pedophilia and bestiality during a Fox News appearance earlier this week.

His comments were condemned as "nasty," "petty," "ill-informed," "rancid" and "reactionary" by Professor Todd Shepard, the co-director of the university's sexuality studies program. Current and former leaders of the organization representing the LGBT members of the Johns Hopkins medical institutions told Media Matters they found the comments "hurtful" and "extremely discouraging."

One of those leaders, Carl Streed, is among the letter's signatories. Streed represents the School of Medicine among the leadership of the Gertrude Stein Society (GSS), a group of more than 300 students, faculty, staff and alumni of the Hopkins Schools of Medicine, Nursing, and Public Health who work to promote LGBT issues on campus.

Media Matters is withholding the names of the other students who signed the letter to protect their privacy.

The signatories say that at the time of Carson's nomination as the class commencement speaker, the professor "was known to most of us as a world-class neurosurgeon and passionate advocate for education" and that many students "looked up to him as a role model in our careers."

But they write Carson's recent comments about marriage equality, his past statements rejecting evolution, and his use of his National Prayer Breakfast platform to issue a speech denouncing Obamacare, "have cast serious doubt on the appropriateness of having Dr. Carson speak at our graduation." While they acknowledge Carson has the right to publicly voice his political views, they write that those views are "incongruous with the values of Johns Hopkins and deeply offensive to a large proportion our student body."