Clovis is the Trump Admin nominee the article was about who is making the assertion about a logical association between homosexuality and pedophilia, arguing they are essentially one in the same (i.e., both are sexually deviant choices).
Personally, I don't think "people who love each other" is really relevant insomuch as marriage is a question of personal liberty. People have a right to marry. Thus, upon what basis can the government pick who can and cannot enjoy that right? Based on sexual preference? What's the compelling reason for that?
So, while I'm sure there were a myriad of arguments from the left on this topic; there really weren't a whole lot of reasonable arguments from the right, IMHO.