Your opinion that racial differences are insignificant and gender difference are significant is your opinion only - not even remotely a fact.Racial differences are insignificant, gender differences are not, they are great and stand in every aspect of our life. Gays understand that fact, and no more want the government saying gender is insignificant in their relationships than we want that in ours.
I've never written a negative word about homosexuals. Keeping marriage between husband and wife is only the best interest of society at large, since every gay was born of mother and father.
Also, I'm not sure what world you live in, but condescension is very negative. You telling gays and lesbians what is best for them when they tell you the opposite is VERY condescending.