False logic. The whole construction is a work of freedom of speech. It is like a statue, which is a reflection of the freedom of expression of its creator. Putting it under public control only means the public is responsible for its preservation. It does not confer any right by anyone to destroy property, private or public. You are just trying to rationalize your own primitive desire to destroy what others create, when that creation in no way infringes on your freedom. (Policies are a different matter, but are also a different thing.)

I don't agree with "Mein Kampf," for example, or "Das Kapital"---but that does not legitimize book-burning. Far from it.