As a literal account of how the universe, the earth, and all living things came into being, creationism *is* false. The story of creation as found in the book of Genesis is a metaphor. You don't need any knowledge of science to recognize that.
That is one of the problems with creationism. It isn’t a matter of if it is false or true - it is useless either way.
Like “last Thursday-ism” - even if the entire universe sprang into being last Thursday with false memories and an invented history - any prediction or explanation based upon that is going to be useless - while predictions based upon there being many thousands of years of human history and many billions of years of cosmic history will bear fruit.
That is the crux of the matter to me.
Science produces useful models that help explain and predict.
Creationism is useless.