I know, but there was this huge moment in the Middle Ages where tons of statues were destroyed (the Storm of Statues, which I thought was more of a European thing than a Dutch/Belgian thing than it apparently was ).
Statues of people who did literally nothing but slave trading could of course easily be removed, but I doubt they'll put them where they belong: in a museum, where people can learn about it. And we're going in a way where literally everything with any tiny bit of connection to racism, slave trade or other dark parts of history is taken away. It's not how I see them, but I wouldn't be surprised if churches are targets due to the roles played in genocide and such (a Columbus statue is already torn down), mosques due to the slavery issues, and so on.
Personally I prefer the examples of statues of people with a dark past, where in later years they added a plaque or something with an explanation about said dark past. Then you make very clear that this person has had contributions (because they generally did) but also was involvd in things we now find very bad.