That thing, 'You must stay together for the kids', is out of fashion but is right. It's not arguing parents that children don't like, it is having one parent.
The future of Conservatism lies in our beliefs and values, not by throwing them away. We need to shed associations that bind us to past failures, but hold faith with those things that make us Conservatives.
With participation in politics so low at the moment I think Christians should ensure their views are represented at all levels and not leave it to others.