There are a few Christian denominations that I suspect reflect a more open-minded nature and a few churches that are pushing an open-minded nature but right now they don't have much power and they seem to be few and far in between.
That aside, I think most Christian churches today push a very dysfunctional message that has been passed down over many generations, so much so that it has became a lifestyle more than it has been just a belief. I don't think that there is anything wrong with Christianity itself but I do believe that people have became too reliant on someone else's interpretation of scripture rather than actually sitting down and reading the bible and figuring it out for themselves. I also think that many have gotten caught up in the culture so to speak and either don't really understand what they are professing or don't really care. There's also the huge issue of people using religion to meet emotional and not spiritual needs. Let's not forget the hunger for money in the churches and the religion... more members, more donations, more merchandise purchases, etc... Christianity has ultimately became a big time business.