yeah i have undergone quite a lot of racism myself. I am a white male, now in my twenties. But when I was growing up in Belgium, I was a foreigner to that country.
My mom is British and my dad is American, i was born in Spain and have been in Belgium since the age of 6 or so...
At that time Belgians were very anti-foreigners, even white people from different countries like Germany, France and England.
Once I was 12 I had to learn muay thai kickboxing (and a few others, like Jujitsu and aikido) so that I would no longer have to fight in school every time i was bullied (basically once I learnt it I had the self confidence needed to avoid fights, as I knew I did not need to fight anymore as I always knew the outcome of the fight, thus me standing there fine, not even a bruise and them standing there or laying on the ground crying with bloody noses and such

, as a result I never had to fight again in my life and the few fights I have had I just let them try to hurt me all the while just laughing and insulting them, if they started to actually hurt me i would just slap them with my hand open as to not hurt them too much).
I have probably only had 4 or 6 fights in my entire life and have not had a fight since I was 17. This does not include organised fights in a ring of course
But yeah basically I have dealt with racism most of my youth since I was 6 up until i was 16. After which i changed schools from a public Belgian shcool to a special European school in Belgium which has people from all over the place in it (polish, americans, british, finnish, swedish, russians, spanish, germans, french, italians, etc...) so racism was non existent at that school, you had poor people, rich people.
Funny enough, the students and my class mates at that school thought they had a lot of issues with racism and bullying and stuff. But i can tell you compared to what I and most others in the Belgian public schools had to deal with, the stuff that went on in the European school was a joke at best...
So yeah racism happens to everyone, everywhere. What pisses me off is to see all these blacks in America going to court with racism cases and getting these big settlements for money and the things they often go to court for is nothing compared to what i dealt with in my youth at the belgian schools.
People tend to think a lot that colored people and blacks are the sole targets for racism, trust me when i say whites can also get racism, even if you lived in belgium your entire life and are poor or whatever or even rich you could be a target for racism.
In my case it was because i was a foreigner and thus had a strange accent and at the time did not speak perfect dutch, ironically i scored higher in highschool than most of the people who were racist against me in dutch exams and such...