From my friend the college professor--today he graded an essay that stated, for those too ignorant to understand, that racism has been around for almost a decade. I wonder what the turning point was that sparked the onslaught of racism ~10 years ago.
I've run into people who think that nothing actually ever happened before they became aware of it. In my office the subject came up once of a politician who was doing something or saying something that was somewhat scandalous (I don't remember now, exactly what it was, but you know, something that's happened a million times before) and a very young gentleman in my office was aghast. He made a comment like "wow, that's never happened before!" I was like
ummm... yeah, it has. a lot of times before.
Just because you suddenly become aware of some particluar trend or occurance, that doesn't mean it's the first time it actually happened. But some people don't internalize the idea that, hey, maybe there was a world full of people doing all kinds of things before I woke up and realized it.
So my guess is that the author of that essay just suddenly became aware of racism about a decade ago, therefore, it never existed before then.