This is just my opinion; the bride's father has said "I won't come if she and her husband are there" ok don't come.
No one else has any problems.
What I don't understand is why the bride's parents' issues have anything to do with your going to your son's wedding.
We had a similar issue at my daughter's wedding. A close family friend categorically stated that she would not come to the wedding if any other members of her family were invited. I said ok sorry you feel that way but don't come.
I do not agree with people being allowed to dictate who is or who is not invited to events.
Last weekend, in Rutland, the first statue in Britain of the late Elizabeth II was unveiled.