What makes you think it is satire? If the queers do what he's proposing, I'll not be surprised.
If they tried to do what he is proposing, the blowback woukd be so immense that it would threaten all the gains they made. There is a lot of people who support gay marriage but not the homo lifestyle.
They could lose those people very easily and that is basically what Saletan is warning about along with Andrew Sullivan.
In the end, the gay lobby, while vocal, is still a tiny minority and they rely on the patronage of others for their support, once they expose themselves widely as bullies, they lose a ton of support.