My argument is not silly, you just fail to understand the gay marriage issue. Perhaps you would like to state why the supreme court should NOT have made it legal across the land. I will explain why they did make it legal. The characteristic of being gay is possessed by a large percentage of the worlds population and it always has been. Estimates vary from 5 - 10% of the population, both male and female. That would make being gay a normally observed human variation in the population. Normal is not bad. You may not understand it, you may not like it, you don't have to. But we all need to respect these peoples dignity as humans. If you think we were made by god, god doesn't make any junk. From the point of view of the state, marriage is not about romantic love, it is about legal rights and responsibilities; rights that people get to enjoy because they chose to commit to a relationship for life, and responsibilities they must live up to within the marriage and afterward if the marriage does not survive. If being gay in a normal human variation in a substantial part of the population, why should those people be denied the right to marry the person they chose?
The mental health community states that being gay is normal, and we should not try to change the gay person, rather we should change the society so it does not view gay people as wrong or in need of being changed.
https://en.wikipedia.org/wiki/Conversion_therapy