I have this weird suspicion that a person advocating to specifically ban gay marriage (and not get rid of marriage in general) might actually be homophobic

I’m removing this comment. Your link isn’t relevant to the discussion, Prop 8 was an attempt to ban gay marriage in a state where it was currently legal.

Further attempts to debate human rights will be met with a permanent ban.

Honestly, that article is pretty lousy. It just boils down to “I oppose gay marriage because I don’t like the concept of marriage”. Just seems like veiled homophobia to specifically call out opposition to gay marriage when they could have just written “I oppose the concept of marriage, and this is why”.