UPDATE FRIDAY 15:30 EDT: Nelson's boss, NSW state MP Kevin Conolly has defended the comments to his local paper.
EARLIER: Just weeks after NSW premier Mike Baird instructed staff to stop embarrassing him on social media, an MP's staffer has written a series of fiery Facebook posts comparing homosexuality to incest and bestiality.
Nelson goes on to argue "homosexuality can have detrimental effects on others too when they adopt children", writing there's "no conclusive studies" that same sex couples adopting and raising children won't have an adverse affect on future generations.
Nelson is a prominent member of the right faction of the NSW Young Liberals and at the time was the vice president of the Macquarie Uni Liberal Club.
Nelson tendered his resignation from the Macquarie Liberal Club, who late on Thursday released a statement on their Facebook page distancing themselves from his "inflammatory" comments.
This post isn't a one-off. Nelson's page is full of anti-LGBT memes and he's shared transphobic pictures such as this on his personal page.
He is a member of the "1,000,000 Supporting Traditional Marriage" community on Facebook (which ironically has only 86,000 members), and has vowed to friends that same sex marriage won't be legalised if he has "anything to say about it".