The best thing Christianity could do for itself is what it's actually doing - throwing away its more rediculous beliefs, traditions and prejudices and moderating its rituals. No sane person has anything againt the ideals of Christianity - the 'what would Jesus do' Christians are thoroughly nice people wanting the best for humanity. They have deluded beliefs about why they should be that way but so long as they behave themselves we can all live together.
Sadly though there's still the evangellicals, the paedophiles, the missionaries, the crazies and the bigots damaging children and claiming rights over others. But the more they do that in modern society, the more they're marginalised and ignored.
Je suis Charlie. Je suis Ahmed. Je suis Juif. Je suis Parisien. I am Mancunian. I am Brum. I am London.I am Finland. Soy Barcelona
"Life, don't talk to me about life" - Marvin the Paranoid Android
"Science adjusts it's views based on what's observed.
Faith is the denial of observation so that Belief can be preserved."
- Tim Minchin, in his beat poem, Storm.