First we should clear one thing up. The Big Bang IS creationism, just without mentioning a god.
No, it isn't.
Big Bang cosmology is about tracing evidence back toward the singularity. But it never actually reaches the singularity itself. It just approaches it.
Some kinds of speculation about the singularity itself might amount to creationism. But that's going beyond what you can find in BB.
Fundamentalism - the anti-American, anti-Christian branch of American Christianity