You are using the techicality of public license to say that marriage is public. In any practical sense it is not. And it certainly does not harm anybody else's marriage.
All of which already exist for homosexuals. You refuse to see that there's no inequality where there's no discrimination.
You are using the techicality of public license to say that marriage is public.
Given that this is the very "technicality" that's at the center of the debate, it's hardly insignificant.