Oh, that sound? I'm in the hot tub, reading a novel.
Your sons weren't made to like you. That's what grandchildren are for.
In my experience, there is only one motivation, and that is desire. No reasons or principle contain it or stand against it.
I loved the house the way you would any new house, because it is populated by your future, the family of children who will fill it with noise or chaos and satisfying busy pleasures.
A child who is protected from all controversial ideas is as vulnerable as a child who is protected from every germ. The infection, when it comes- and it will come- may overwhelm the system, be it the immune system or the belief system.