Q: racial とはどういう意味ですか?
A: having to do with race

"there is a lot of racial hatred toward african-americans"

"asians are a racial minority"
Q: racial profiling とはどういう意味ですか?
A: While racial discrimination can happen in a lot of contexts, "racial profiling" specifically refers to racism from police.

Police often "profile" people, which means that they look at things about a person to try to predict what kind of person they are and if they're likely to be a criminal. For example, a guy who has a history of hitting women might be a suspect in his girlfriend's disappearance because of his profile. Some parts of a profile make sense like that one, but others can be silly or even discriminatory.

Racial profiling is when police see someone who isn't white, most often black but sometimes Latino or Arab (or Indian or Pakistani, if they think they look Arab) and then assume things about them and treat them accordingly. Like for example, they see a black guy driving a nice car, so they think he must have stolen it. (Also called "driving while black," because this is unfortunately common.) Or they find excuses to search black and Latino people just going about their business, looking for drugs or guns. Or they see someone who's Arab or looks Arab, and treat them like a terrorist--search them, seize their phone, interrogate them, detain them for nothing.

Basically, building the "profile" of whether they think this person will commit a crime, based on their race. If you search for the controversy around "stop and frisk" in New York, you'll see a lot of talk about racial profiling. (Stop and frisk is an unconstitutional police practice, of illegally searching people on the street with no cause other than their race.)

Another specific type of racism is redlining, which is when real estate agents refuse to sell or even show people houses in white neighborhoods because they're not white.


Q: racial を使った例文を教えて下さい。
A: There is a racial protest currently called the Black Lives Matter Movement.

There have been a rising number of racial attacks lately.

Racial injustice is still a big issue in today’s world.
Q: racial を使った例文を教えて下さい。
A: The n-word is a racial slur

Racial discrimination is thought to be common


Q: racial と ethnic はどう違いますか?
A: Someone's race has more to do with their skin color and less to do with their country of origin. For instance: a person could be Asian racially and Chinese ethnically.
Q: racial と ethnic はどう違いますか?
A: In conversation and casual writing, the words have the same meaning.

In academic terms, I think race is just genetics and ethnicity includes that as well as culture.