How/why is preserving symbols of the oppression of an entire race of people important?

You know I respect you but I have a different opinion on that.
I don't believe they are oppressive, that is my opinion, I believe I am being told that I should feel oppressed by them.
They are part of history, a part we may not like, but I do not believe in suppressing all we do not like.
Nobody asks what is next idea someone won't like and will demand be erased from our consciousness.