Evolution v Creation
You know, it is a good point that evolution is taught in public schools and creationism isn't. But are you really sure what that means? When you say that evolution is being taught and not creationism, you really mean evolution is being taught and christian creationism doctrine isn't.
If a public school were to teach christian creationism, wouldn't they be obligated to teach islam creationism, mithra creationism, zorosatristic creationism, buddhist creationism, hindu creationism, far east creationism, etc... I think you get my point. And those are just the ones that exist today.
From a religious point, there are many different stories on creationism. In science, creation seems to have fewer and ultimately evolution is the accepted view.
So please be cautious when you speak. Your language is very misleading. Public schools do not teach religious creationism. However you are only angry because they don't teach your version of creationism.