Regarding the topic CoccoBill brings up, how to define racism: I think it would be best to return to what it always meant before race-baiters got ahold of it: scientific racism in the context of politics, i.e., thinking that somebody should have different rights based on his race. It could maybe get into pure scientific racism territory, but it begins to get messy there. For example, there are some legitimate differences between the races. You can reasonably think that a white person would probably burn easier in the sun than a black person.

Institutional racism (like affirmative action) is by far the most serious and very real racism we have to deal with today.