Well a large part of the issue is precisely this. As a nation, we’re far more interested in scrubbing the history books and trying to forget than we are acknowledging the victims and trying to give them the identity they deserve. Left and right are both guilty of this. Pulling down Wills’ statue is only worth something if we put a statue up to honour the massacred.
We're not scrubbing it, people just don't care.
Google and you can find anything on any subject if you want to learn about it. There's no suppression of information.