This is an interesting legal point. The judge is asserting that homosexual marriage has no effect on heterosexuals or society as a whole, or at least not a negative effect.
Spreading AIDS to society at large is not “no effect on society at large”.
I see the ‘standing’ thing as the normal leftist ratchet approach.
The only people with standing are those who are damaged by the law. The only ones damaged are the people who are told they can’t marry. Therefore, the only people who can sue are the gays. Heterosexuals aren’t prevented from marrying, so they have to right to sue.
This effectively biases the legal system toward allowing gay marriage, or really, allowing anybody to do anything.
I wonder if the standing argument could be pushed so far as to even allow murder to become legal (theoretically). The only people who could sue would be those damaged by the murderer. Those damaged would only be the dead victims, who would be in no position to sue. Could be a civil vs. criminal lwaw difference, though.