If you don't think that Catholics have been infected as well, you need to look a little deeper.
Last stats I saw for adults who have been married
All protestants (including liberals) 34%
Catholics 28%
Evangelical protestants 26%
Oh, I know Catholics have been infected and I know not all Protestants have been (I’m not Catholic) but my point was that many Protestant churches accept divorce despite the fact that Jesus was pretty clear about it — more clear than about many things.