You keep comparing mixed race marriages to same sex marriages. Doesn't hold water, mixed race marriages were illegal for a relatively short period of time in some - not all - geographic locations. Marriage has meant man+woman since time immemorial, all over the globe without exception. The only variation is that some cultures have permitted polygamy, which is still man+women.
Second, your acceptance of same-sex marriage is based on the false premise that "gay" is an unchangeable identity such as "Black" or "Chinese" or "Caucasian". All those categories are morally neutral and also unchangeable. Being "gay" is based SOLEY on voluntary behavior. The many "ex-gays" are testimony to this.
Once special recognition, rights and so on are granted to a changing group indentified solely by their chosen methods of sexual gratification, where does it stop?
Yes I do and I have been told how offensive this is. For any perceived offense I would apologize. Those who know me know my heart is in the right place.
Being "gay" is based SOLEY on voluntary behavior.
There is scientific evidence to contradict this assumption. Hence my comparison.
1. There are documented differences in the brain structure of gay men. They examined the structure of, I believe the hypothalamus, under the microscope. Straight men have little holes in the structure. Gay men and women do not have these holes.
2. There were studies done in Germany on rats that showed stress during gestation caused problems with the hormone release in the fetus. They ended up with gay rats.
So for now I will stay with the science.