But do we know if those statues Rally them, or do they chose them to Rally?
This is very similar to the "Videogames cause violence because these violent people play violent videogames".
Unlike video games, statues are inert and non-interactable (yeah you can touch them, but you guys know what I mean), so, that comparison doesn't really work. If confederate statues rallied them, we should be seeing them rally to just any ol' confederate statue, but they (the neonazis/white supremacists/etc from around the country) aren't going to just any ol' statue, they're going to pretty specific figures.
I'm able to avoid getting a froth worked up over the "hiding the past/covering up the past/forgetting the past" stuff because others already covered it but I do think something is worth noting about these statues:
The past they represent and commemorate is not the civil war, it is the periods when segregationist movements gained power during the 1920's until around the 1960's, and though it may seem strange, it is unfair to tarnish the reputation of those figures who were actually involved in the civil war by acting as though the later statues are really about them.
There wasn't a huge movement in the 1870's and 1880's to go around and remind former slaves what their place was or what the statue builders thought it should be. No doubt there were those who were involved in the war that would agree with the purpose of these monuments to hatred, but that doesn't matter to this discussion really.
These statues and parks and buildings were built and dedicated and renamed decades after the war ended by racists who wanted to glorify their hate so tearing them down means we're going back to the default state of "fuck racists" by no longer allowing a monument they built to stand.
A statue of Jesus made 1000 years ago represents Jesus just as much as one made 200 years ago. It's the representation that's important, not the age of the statue. Also, as long as the statue is an accurate depiction of the general or whoever, the age of it doesn't really matter as far as placing in a museum.
Also, I've seen references to General Lee saying that he did NOT want people to create statues/monuments/etc (other than memorials to battles) since he felt it would harm the healing of the country.