You can't correct history by removing all reminders of it.  Are the Jewish concentration camps maintained as some tribute to a horrible, horrible dictator?  Of course not, they are there so that the world will "never forget"  You "correct" history by never repeating it.  Removing statues is just an attempt to pretend like something we are not comfortable with never happened.  What's next, burning history books and replacing them with sanitized versions that contain nothing but unicorns and puppy dogs?