The fossil record doesn't support half the nonsense evolutionists come up with, no one has ever proven a Big Bang, and I don't see any dogs with gills, or talking fish - their fossils seem to have disappeared too.
And strangely enough animals seem to decide to wallow over to one area and die in large groups so their fossils can be found together. Fossilized trees have been found that extend through multiple layers of sediment - you know that stuff that take millions of years to deposit, because trees can grow with fossilized roots, because they evolved that way.
And clams at one time had legs, but evolution said they didn't need them which is why seashells are found near the top of Mt. Everest - definitely a more plausible story than a catastrophic event such as a flood of Noah's Ark proportions.
Cannot a competing "theory" held by a considerable number of Americans also be taught as well?
Creationism is not a scientific theory it is a religious belief.
Too often politics replaces the scientific method. Just look at global warming/climate change. It is all politics, and getting the next grant, not science.
The Big Bang Theory, and anything else to do with what happened in the universe prior to the appearance of life on Earth has absolutely nothing to do with the theory of evolution, which deals only with how life forms change once they have come into existence.
FWIW, the BBT exactly corresponds with what the Bible says: the universe came into being from nothing.
The previously commonly held theory of a steady state universe is actually much more congruent with atheism.