If I might suggest:

The process of agreeing to remove this racist, seditionist garbage is of value in its own right. No liberal mind would ever turn down the opportunity presented by false claims to educate. Truth is not its own advocate.

Ripping something down in an extra-legal manner teaches little of value to anyone. In fact, it mirrors the evil represented in this monument to violent repression. 

Discerning Good from Evil is not the same as believing you have a monopoly on virtue and the other has a corner on vice.