I am going to upset someone with this, I am sure.
Racism has to be practiced by those in power. It is the oppression of a "racial" or "ethnic" group because they are not in power, and those in power want it that way.
Not allowing blacks to have certain jobs, or to get an education, or even making it unlawful for them to learn to read, is racism.
Most of what we have talked about in this thread is BIGOTRY, not racism.
In the USA, it is difficult for blacks or hipanics to be racist,because they are seldom in power, but ANYONE can be bigoted. At least here racism is not as big a problem as it once was, but bigotry is everywhere. I am still sometimes caught unawares, and surprised.
I have been avoided, shunned, by people who disliked the fact that I have taken lovers of other races. I have had black women threaten me 'cause I sleep with black men, and have had white women criticize me having black women as lovers, and I am NOT going to repeat what some white men have said to me about either of these things.
I have sex with whoever I want, so long as they want me.

I am the only daughter of a professor of english, so please forgive my desire to explain of the difference between racism and bigotry.

WW

__________________
"I wondered, am I a lesbian, am I straight, or bisexual? Then I realized that I am just a slut.
So where's MY parade?"

---Margaret Cho