Most people will agree that racism is the discrimination of someone or a group based off of race. This definition is accepted by almost everyone, but there are a few people who label things racist, but they're actually not racist.
Racism and Facts
Some people believe stating a fact that shows a race in a bad light is racism, it is not. For example, black people have a five times higher murder rate than white people. Thus, a black person has a five times higher chance of being murdered than a white person, statistically speaking. Now, if you said something like "All black people or most black people are murders", this would be racist.
Minority verse Majority Racism
Most people do agree that any race can be a target of racism, but there are some people who think otherwise. Some people think only minorities can be the target of racism and this is not true. The definition of racism is the discrimination of a person or a group of people because of their race. Thus, by definition, anyone can be the target of racism. Saying "all white people are racist", even though it is against the majority in America, is still racism.
Racism in Affirmative Action
Affirmative action that solely helps and excludes certain races is racism. Even if it is used to combat racism, it is still discrimination based on race, thus it is racism. A example of this is when a minority that has a worse grades and scores than a person in the majority, but gets into college anyways, while the majority student does not get in. This is racism, as the college is putting one race in front of another.