I wouldn't let my children by taught by an atheist. This is what you get.
Unfortunately, this is the same track that most kids are getting in the public screwl systems. They ran a piece the other night here in Ohio on the local news showing that a large portion of the children are not being taught the Constitution, the Civil War, etc. because it doesn't "help" on the standardized tests. We, as parents, have to be more involved in what they are being "taught" (=indoctrination). The Academic Bill of Rights is a start but it usually only applies to college education. We need to take our schools back.
"I wouldn't let my children by taught by an atheist. This is what you get."
The problem with the book isn't that it advocates an atheistic view. The problem with the book is that it is non-scientific and nutty. There are plenty of nuts in the world and not all of them are atheists.
Your "logic" here is worse than anything in that textbook by far.