I just want to point out that "racist attitudes" from the surveys are not necessarily racism. The article says that the surveys asked participants about their opinions on how words "such as "friendly," "hardworking," "violent" and "lazy," described blacks, whites and Hispanics."
You would be surprised how many black people self-describe many blacks as lazy. Keep in mind that this is not ALL blacks, but many. This particular topic came into question in one of my classes (which has a significant amount of black people, probably half the class) and pretty much all of them would more closely relate lazy to blacks than hardworking. Is Obama lazy? Hell no. Are the blacks in my class lazy? Doubtful. Are there many in the general population that I interact with lazy? Yea.
It is a simple general idea that tends to hold true in most cases. I am not going to judge before I interact with the person, but it is a general statement.
EDIT: In regards to specific racism
https://www.youtube.com/watch?v=P-sNL3-WZUU