All I take from your post is that your just a homophobe and your reasoning makes no god damned sense.
Plenty of games these days have gay marriage in them, 2 for example are final fantasy 14 and stardew Valley, so don't spout nonsense thanks.
What part of my reasoning makes no sense? you should first have reasoning for that.
To answer your question, I don't hate gay people because I haven't met them yet, but what I hate is gay marriage and people asking for it.
Marriage suppose to be happen between male and female, and companies the sexual relationship, and as well as parenting. No matter it's game or not, that's how marriage should be.
That doesn't apply to male and male. Physically, and psychologically it's abnormal because male is designed to have sexual relationship with female, and they're designed to be attracted to opposite gender.
For that reason, gay marriage shouldn't happen, or at least shouldn't have the right in public.
Male isn't a replacement for a female, they're just male. Marriage shouldn't happen between the same gender.
Again, it doesn't matter who loves who, but trying to apply that to the public is wrong.
Most importantly, we don't know how that will effect on young ones psychological growth and physical behavior.
Secondly, if the idea of abnormal marriage and sexual relationship grows in public, I'm sure that someday it will end up with animals or anything else. Marriage with animals, and sexual relationship with them. I can say, that is wrong and weird.
If they want to love same gender and have sexual relationship with them, that's their choice. However they shouldn't deserve the public notice or right for marriage because it's not made for them. That's my reasoning.
I personally think marriage should be removed in the game too. Or allow them only for married people in real life.