Buddhism as a life philosophy or with all the supernatural mumble jumble added after the first Buddha died to make it a religion?

First of all all religion is just nade up mumble jumble, and creationism is just some people trying to warp religion to try to fit into scientific findings (they didnt' really do a even a half-sassed job of it either).

The two aren't even related.

What does Buddhism have to do with creationism?

I like to think of Buddhism as a practice, not a religion. I tend to cherry pick the parts I like of any belief system. Literal reincarnation sounds like a parable.

there's no evidence for reincarnation and I find the concept highly unlikely