For example, you evolved to have sperm - those sperm have a very definite purpose, it is go to into the egg of a female. There is simply no escaping that. Your body produce that for a reason... Nonetheless, you are a modern repressed creature like everyone.
So... is that a prejudicial attitude? You decide that, I think it is a realistic and well rounded viewpoint of the whole matter. I don't think you're going to get very far by denying evolution, if your identity hinges on that... it's time to reassess your identity.