Gays should start their own church and denomination and then they are free to worship their god whoever that might be that goes along with their lifestyle and supports it. Have their own bishops, their own bylaws, their own mission outreach, their marriage, their funerals and whatever else they want their church to meet their desires.
They've always had that option. It's not about their freedom to worship as they choose. They crave acceptance so much that they want to force everybody else to validate them. As self-loathing narcissists, they will always be bothered by the notion that someone, somewhere does not approve of their lifestyle.
On the disgusting series The New Normal, one of the homos on the show likened your advice to being told to "sit at the back of the bus".