Some interesting thoughts on the government being in the business of 'redefining' marriage.
Quite true, that they can only change the words but not really affect the meaning.
"You are hoping by its force and might, by fiat, that government will
change what marriage means. But government can’t change the state of
marriage fundamentally. Nobody can. The best it can do is to use the
word incorrectly, and require that others do, too. We’ll see later that
this still won’t (and can’t) alter real marriage."