Australian MP George Christensen was furious that the Queensland parliament finally equalized the age of consent between vaginal and anal sex last week, but the conservative's declaration that 16-year-old boys would now be preyed upon by 50-year-old men didn't sit well with one of his long-time party supporters.

71-year-old Peter Roberts, who has a gay son, doesn't have a Facebook account of his own, so he borrowed his wife's to write a message of disgust on the MP's page that is now going viral on Twitter.

"A few Anzac years ago you bought me a beer, as a 20-plus veteran with two tours of Vietnam," he wrote. "If you did it now, I would tip the bloody thing over your head."

Roberts pointed out that Christensen was a "typical homophobe" for equating homosexuality to pedophilia, and that it is a double standard to be okay with older men going after young girls, but not guys.

The post went viral after Roberts' son Dale shared it on Twitter, stating that his dad saw Christensen's words as a “direct attack on myself and our family."

“Dad is by no means public with his politics," Dale told Buzzfeed News. "And definitely not on social media. He’s 71 and doesn’t have his own account."

Dale said his dad is "very quietly supportive" of him and his partner, and is just upset that his son doesn't have the same rights that he does.

“I think dad’s post and the reason it’s gone off is because people can relate to the frustration with it all," he added. "Marriage equality can happen immediately. Let’s get it done and treat all Australian people and families the same."

h/t: Buzzfeed