Anti-Gay Marrige Video

I just watched the latest ad from the National Organization for Marrige here. How dare they use the term "rainbow" in their ad! I am still at a loss as to how my marrying my partner effects the mother in this video, or why the young woman has to be affraid. I am also still trying to figure out how my getting married is ripping their rights away. You are so focused on your rights; waht about mine, or lack there of?