But atheism isn't true, Hans. If someone accepts believes that atheism is true, they are doing so based on lies, which can be proven false. It's not atheism vs. Christianity, it's what is actually true versus what is actually false. Atheism was never true, and the person never believed the truth, until they did.
However, Christianity is actually true.
It's a lie of the world that atheism and Christianity are equally valid life choices that you can select like it's a restaurant menu. Christianity is true and the other belief systems are lies, thus that's where the truth/lie differential is. So it doesn't matter what everyone actually believes - the devil doesn't care what lie you bite off on, as long it isn't Gospel truth.
People reject beliefs and change their beliefs when they are shown to be false. If Christianity is true, and it is true, you can't reject it after you truly believe it and change your beliefs to believe a lie because you will have no basis to disprove Christianity because it is true.
Am I finally making sense?