Sort them and have some go to museums, the lesser and duplicative ones can either be scrapped or something else. You don't need 10-15 statues of the same guy, 3-4 of the better examples is enough to let you get an idea of it. Hell, while you're at it you can work in how they were created as tools to oppress, further driving home the notion of "DON'T DO THIS, IT'S BAD"
To outright destroy every single one as some sort of cover up seems like a terrible idea. I like how Warner Brother Studios put it, to outright remove/edit the content is to basically say the prejudices never happened. Might as well round up all evidence WW2 took place and eventually the survivors/decendants will be gone, so we can have another Hitler... have some summer camps for those that qualify.
Also to say only america is racist is a load of bologna. I usually stay out of some stuff, but I honestly cannot take some seriously anymore. They seem to want to burn everything to the ground, then when it's messed up complain there's nothing left. Well, no shit...
I previously decided against paraphasing a comment I came across some years ago on youtube, because it was pretty yikes. It was someone who claimed to be a white male not understanding why people were so against interracial couples, etc. His reasoning? That's the best way to breed them out. Yep, show your love and care by breeding them out, no ulterior motives here yessiree... I see similiar shit going on with this "destroy it all" so that no lessons can be learned.
there are books and a public education system to educate people on what the confederacy did. You dont need a statue that glorifies these villains to educate people