Science is science. Evolution, whether you agree with it or not, is scientific - it can be, and is frequently, tested by the "scientific method" - and belongs in a science class. If you think evolution shouldn't be taught in a science class because you don't agree with it, then almost nothing else should be taught in a science class.
ID, whether you agree with it or not, is NOT scientific - it cannot be, despite best efforts, tested by the "scientific method" - and does not belong in a science class. If you think ID should be taught in a science class, then almost everything else people think, including the FSM, should be taught in a science class.
Many evolutionary scientists believe in God. Many other scientists believe in God. ALL scientists know that you should not "needlessly multiply entities", and that "God did it" is NOT an answer which can be investigated, proven, verified, checked or corroborated.