I appreciate, very much, the honesty of this poster at Queerty, who says he honestly does not know how to answer my rhetorical question in my debate with Evan Wolfson:

"For those of you reading this I would ask of you only one thing: whether you support gay marriage or not, can you at least acknowledge what you are asking of those of us who disagree, who believe our historic marriage tradition is good? … Gay marriage will make it virtually impossible to renew marriage's central public role, which is not to celebrate private romantic love—hardly any business of government—but to protect children by increasing the likelihood that they will be born to and raised by their own mother and father. Gay marriage makes it impossible to articulate this as a goal of marriage, much less to realise it in real children's lives."