Just for the record: I never claimed that, and I wasn't specifically talking or thinking about US history in my post.
Please, let's behave like adults and not turn this into a "my country is less racist than yours!" contest. I'm sure we can all agree on racism being a global issue, and one that is best dealt with by taking it on together, rather than pointing fingers.
That said, the whole discussion is very much off-topic, and this thread is surely going to turn out that much more productive and worthwhile when we stick to talking about the news post.