This eloquent article raises the ultimate question with people who oppose equality: Why?
I worked on the U.S. marriage equality campaign throughout its last 4 years, and can answer that question for the opponents. They are always reluctant to say why, and often incapable. Eventually, all opponents end up giving the same excuse.
The opponents of marriage equality are authoritarian, arch-conservative theocrats who want their religious superstitions written into the civil laws that govern everybody else.
That’s the entire reason, nothing more, and nothing less. All other reasons they claim, once argued, always return to their desire to live in a theocracy in which their religion is the law for everybody, and everyone else’s religion counts for nothing.