Secular Humanism is not a religion. That is one of the dumbest arguments out there. It may be a belief system but it does not worship. It has none of the attributes of a religion.
Science is merely a system of proofs. Science does not concern itself with the unprovable. One version of reality posits a first mover, many scientists believe in a first mover. What you want is to negate the very principles of scientific study. Only someone like you who denies the existence of time as defined by science sees science as a threat to your belief system.
The burden of proof is on you not on science. You are free to demonstrate that time began 10,000 or 6,000 years ago ex nihil. If you can not prove that than you are nothing more than another religious fanatic and you have no place in the science curriculum of the schools.
Evolution may be a theory but it is not a religious belief. That is where you go wrong.