I reckon I'd say that Christians have been doing what they do for nearly, or more, 4000 years. I guess I'd agree that it is slow to equate to a real takeover. Interesting proposition though.
I personally think, IMO, that Christians are trying to get folks saved from the fiery place. And the only folks most Christians attempt to work with is those who will listen. Christ's message is to ignore those who will not listen.
As always there are fringe elements in any organization that will take things to an extreme. The hard lefties and righties certainly do not speak for me as a Christian. I can't say that I know what any Christian REALLY believes nor do I have an opinion about that. As a Christian I believe their relationship is between them and God - just as it is between me and my Lord. It's not about what I do right - it's what I do in His name.
I'm probably not being clear about what I'm trying to say but as far as a Christian takover - pretty funny really. But I have enjoyed reading the civil discussion regarding the same. Kudos to all of you for being courteous with it.