This is the same stupid argument made by the pro-confederate statues people. Getting rid of something that is offensive isn't "erasing history", it's just admitting you did something/portrayed something in an offensive manner, and apologizing for it.
That is not the same at all. That is a shameful analogy.
Confederate statutes are public displays. They are put up on public grounds, and they served a certain purpose (a terrible purpose that I will not go into due to site rules).
The people that are honored by governments (and hence, all of us) with statues is not, in any way, shape, or form, the same as attempting to get rid of prior books.