I know she is. I don’t recall her defending it when “marriage” was made available to homosexuals. I’ve read that she doesn’t approve but then she signed the assent. Formality that it was, she should’ve declined and explained why, as Defender of the Faith, as a Christian.
The fact is nobody has any clue what “God “ thinks about anything. Just assumptions or wishful thinking.
And not signing it and/or making a fuss about it, would have accomplished nothing!
You can't make such statements, based on what YOU would have done/wanted done, sans any factual knowledge of what you're talking about, only makes you look foolish.