"I totally support the Swedish government on this. Life, family, children, and responsibility are not games for queers to endlessly play with."
I don't see how your second sentence follows from your first (or vice-versa). Unless the government is going to outlaw gays from having kids, or outlaw sperm donations to lesbians, the guy shouldn't have to have his agreement retroactively changed by the government.
This guy brought a life into this world, and expected homosexuals (known to be self-centered and irresponsible people, in general) to take care of that life. They didn't. Now he has to pick up the pieces. His government says so. There's not much room for surprise here. As I say, It's socialism.