Re: We all know what happened
It wouldn't surprise me at all if half the population were bigots and racists. In fact, I'd be surprised if the proportion is that low. Suspicion and fear of those outside our own tribe is not merely a cultural phenomenon, it's baked into our DNA. We evolved with it. Even if you recognise that, and even if you accept that this trait is a problem in the modern world, it's still a difficult tendency to overcome, and an easy one to stimulate in others.