Aaaah, Creationism, the evolutionist's strawman. I know a lot of people who believe man and all living things were created by God. None of them call themselves Creationists. They call themselves Christians.
The part of Christianity which is relevant to the discussion of evolution is the Bible's statements that God created all life and that God created man. This is what Christians believe. It is not a scientific theory, it is a religion. However, the fact that it is not a scientific theory does not mean that it is not true.
It is not Christians that started this fight, it was evolutionists who really were not interested in science, but in attacking religion. You can barely read any of these evolution threads without seeing evolutionists showing their rabid hatred of religion. Evolutionists are trying to use the good name of science to undermine religious belief and promote atheism. Christians are defending their faith against this attack.
The way the Christians defend it is simply by showing that evolution is not science: that evolution is not based on facts: that evolution is internally inconsistent: that evolution is contradicted by many things which real scientists have proven.
So the opposition to evolutionism is not creationism, it is not an ideology, it is not a scientific theory, it is not a theory at all. It is a criticism of evolution using the tools of science, reasoning and common sense. This is perfectly valid. In fact, criticism, analysis, reasoning, and common sense, are the tools of science itself and for you to call this criticism invalid is total nonsense. Science is criticism, and if your theory disdains criticism, if your theory abhors criticism, if your theory does not wish to stand up and defend itself from criticism, then it is an admission that evolution is not science.
The part of Christianity which is relevant to the discussion of evolution is the Bible's statements that God created all life and that God created man. This is what Christians believe. It is not a scientific theory, it is a religion. However, the fact that it is not a scientific theory does not mean that it is not true.
Thank you for admitting that "competing theories" (competing with evolution) have no place in science class. We seem to agree that none of these "theories" qualifies as even a theory, much less as a scientific theory.
So the opposition to evolutionism is not creationism, it is not an ideology, it is not a scientific theory, it is not a theory at all. It is a criticism of evolution using the tools of science, reasoning and common sense.
The opposition to evolution aspires to be taught as a "competing theory." It isn't one. You don't have a horse in the race. You're not addressing the question of what motivates the opposition. Modern science, not just evolution but geology, astronomy, nuclear chemistry--a lot of things most of the world believes to be outside the term "evolution"--seems to contradict your religion's creation myth.
You confuse cause and effect in your post. Your religion leads you to attack science because science has dared to "attack" your religion by finding contrary data. But science is not and cannot be about proving your preacher right.