Atheism, the short lived idea?

[CapnAwesome]

For the past 200-300 years or so Atheism has flourished in developed countries, with atheism, has led to being secular countires, which have made us humans take leaps and bounds in all fields of science. However, is that about to end?
Europe's population is dwindilling, so to keep the economies afloat they get immigrants from developing countries. The major problem is that most immigrants, to Europe are either Muslims or Christians.
Whether the idea of God is a dellusion or not, Atheism isnt a very nice idea (You are a product of nothing and mere chance) most people will not adopt it, espically if they are from a developing country. Since most people will not adopt it and immigrants come from thrid world coutries who are either Muslims and Christians, who keep their faith. Are we going to see the slow and steady decay of Atheism?
I believe so.
I guess the question is, would you prefer to live in a majority Christian or Islamic country?
The problem with Muslims is they can be fired up and cry, 'Jihad' Causing civilised countires into barbaric (Afghanistan) nations. Im not saying all Muslims are like this. However, the worst you will get with a Christian nation is them knocking on your door and having billboards telling you not to have an abortion. Generally, in the 21st century you dont see Christians killing other people, because they believe contrary...
So I personally would prefer to live in a Christian nation, if I was an atheist...

Wow, well that rambles and has little to do with the topic at in the title. I guess I'll try to respond to your main points, as disconnected as they are. I sincerely doubt that Atheism is going to be a short lived idea. It's already been around from time immemorial and will continue so. Also Atheism is not on the decline, but in fact is on a rapid rise, especially in the United States. In fact Christianity is on a rapid decline (especially in the United States.)

Then there is some disconnected comparison between Christianity and Islam and the question about where you'd much rather live. While I would certainly never want to live in an Islamic country, I'm not sure that there even is a Christian country anymore (Maybe Ethiopia?). All of the countries in the west have secular constitutions. The United States most definitely has a secular Constitution and the laws are certainly not a product of Christianity. (The first amendment and the first commandment aren't even compatible.) So I'd most like to live where I do, in the secular west.