I do not think we are all racists. I think we are all fearful of the unknown and that is viewed as racism.
Racists do exist. I have lived in the south all my life and have seen first hand the agony caused by bigotry and racism. I have also seen progress. My wife, a semi-retired Catholic School teacher taught in her last school that had 90 percent African-American Population and most of those were non-Catholics. The school was in a neighborhood that was once predominately white,but the white flight of the 1960s has turned it into predominately African American. However, whenever a student sees my wife, they will always stop to hug her, even if they had not been her class for several years. When she taught a a predominately white school, she was one of few teachers who taught a section on black history.
I have worked with African Americans over the years in many capacities and never had any problem with them. I worked with a lot of white people who I hope to never see again. It has nothing to do with skin color, it is all about attitude.
Prejudice is learned, generation to generation to generation. Tolerance and understand has to be learned in the same way. I grew up in the 1960s when there were white and colored restrooms, where black people had to sit in the back of the bus and whey black people could not sit at a lunch counter. They could fix your food--they just could not sit next to you.
Fortunately we are beyond much of that, but we still have a long ways to go.
I doubt we will ever totally eliminate prejudice,but I think we are making progress.
I know what it is like to be in the minority. When I was in college, I worked in the cafeteria kitchen. I was usually the only white person on my shift. We all ate together at the same table. We talked about school, sometimes we talked about the Civil Rights riots around the country, but they did not blame me and I did not blame them. We talked and I think we all learned a lot. One of my co-workers later ran for Student Council Vice President. I voted for him. He did not win, but he came close.
The short answer to the question is yes--discrimination still exists. But, I think we are making progress.