Christians, why don't you follow any of the old religions?

Why aren't there people who still follow the Greek gods or the Roman gods? I think you are just afraid-like those before you-that you are being fazed out. You see all these people becoming Atheist, and you just can't stand it, you think "Well its the devil, he done got hold of there souls." Because you can't get out of your old beliefs, like so many people are now today. You see your old ways of "Well if you're not a christian, then you get sent to hell, where, you get boiled alive in lava (or magma) and have your skin torn off, then regrown, and just all around tortured" just isn't working any more and you are just so frighted. You see science proving so many of your beliefs wrong like the world being 6,000 years old or made in 7 days proved false by radiometric dating., or everything always being the same disproven by things like tectonics and the fact that everything is moving away from each other in the universe. (that does not mean we are at the center. take a balloon put some pennies on it and inflate it, from each pennies perspective everything is moving away from it.) So get used to it, in in hundred years or so we will be the majority, and you will all be lowly fazed out, like the old religions.