That makes zero sense. Banning those marriages requires bigger government, not allowing them. Restricting gender identity requires bigger government , not leaving it alone. How freaking stupid.
So the answer is you don't think things through ever.
Before the government recognized same sex marriage the couples could call their relationship whatever they want. They could enter it anyway they wanted. They could end it when they wanted.
Now the government determined if they are married or not. They have to follow governments rules on how to enter the relationship. They have to petition the government when they want to leave the relationship. The government decides how to divide your property. The government decides how long you have to be together before you can separate.
Oh and now because of the court decision, the federal government is interfering in marriage law.
So yeah big government. Giving government power to regulate always increases its size and power.