Racism is natural feeling but exploitation of that feeling what makes racism so important and problematic. Exploitation of racism aka subjugating group of people because of their skin color has economic background and deep down comes to class struggle. When idea of humans being equal aka communism fell into abyss thanks a bit to you guys as well, class differences increased. In a country full of whites, those who stole became elite and those who didnt fell deep into what became ghetto. Surrounded in tall buildings that weren't maintained anymore in a country that was going through economic collapse one social class, previously members of the most dominant middle class became low class citizens and their children started behaving exactly as racially exploited people who live in American building blocks. Due to lack of differently coloured minorities, one class had to play their part in coversion to liberal capitalism.
On the other hand you have black shepherds in Ethiopia who behave exactly the same as their European, American and Asian counterparts. They wear same clothing, have same living habits, are equally shrewd and tough in nature. Just different skin color. Mountain people are the same everywhere and don't listen to rap, smoke weed all day and move in wolfpacks. It's different in western Africa but that place has been under influence of Europeans for so long no wonder their societies went to shit. Their original societies are very backwards tho, they are very tribal, women have no rights other than to bear children, they behave like Europeans of 3000 years ago. That doesn't mean skin colour is reason why they are like that, it's just they never went through discoveries white people had and were left at tribal stage before white people started exploiting them because of them being technologically backwards. Like when you play RTS and one dude is still in Stone Age and you rape his ass. Why whites progressed and blacks in Africa didn't? Maybe because they are less confrontatial between themselves unlike Europeans who waged so many wars which improved them significantly in the long run.
You're free not to care but take notes that those choose not care aren't exactly members of elite class themselves. British and you Americans would be nowhere today if you never cared about other cultures. Not caring is trait of ignorant people.