I hope you are not including in those monuments all the "monuments" to Confederate leaders in the Civil War. There were many diabolical historically significant figures - Stalin, Saddam, Pol Pot, Ghadafi, Ceaușescu etc.. That does not mean they deserve monuments.
I meant in general terms. Jerry makes my point by this example:
The PC mob in Canada are removing statues of Sir John A. Macdonald, the country's founding father. I don't know where it's going to end. Political correctness is a major reason why almost half of Americans voted for Trump.
Wars in general are deplorable and should be avoided if at all possible. But not many people are calling for the removal of all monuments that commemorate all wars. And just what is supposed to be being accomplished by removing the monuments?
Monument - a statue, building, or other structure erected to commemorate a famous or notable person or event.
Commemorate -recall and show respect for (someone or something).
Commemorate means to remember and show respect. That doesn’t necessarily mean we have to agree with what that someone or something did to show our respect. The JFK assassination is one of the most evil events that I have encountered in my lifetime. I believe that LHO is guilty and his cowardly act offends me greatly. But I don’t believe that his monument (gravestone) should be destroyed. WTF would that accomplish?