The half-brother of an outspoken anti-gay MP has publicly come out to challenge his sibling’s “hurtful and dangerous” views.

Carl Katter (pictured) told TV interviewer George Negus on TEN tonight that he’s repelled by Bob Katter’s recent statements ridiculing the idea of gay marriage.

“Whenever I see him on the news, I turn him off,” he explains. “It’s hurtful, it’s dangerous, it’s damaging, and it’s really inappropriate. It doesn’t give any support to his argument by perpetuating hate and discrimination.

“He doesn’t seem to represent the whole of his community and he denies the fact that there are a lot of gay people in his community.”

Carl says he outed himself today because he wanted to sound off about the “disgusting behaviour” and “homophobia” he’s seen on the opposite side of the marriage equality debate.

“I couldn’t sit by and let that happen in a country that I’m rather proud of,” he says of last week’s hate-mongering Marriage Day at Parliament. “I thought we [as a country] were not discriminatory to any groups.

“I haven’t seen anything like that in my time living in Australia.”

WATCH TONIGHT’S INTERVIEW IN FULL BELOW:

Carl is Bob Katter’s half-brother – they have the same father.