I think culture plays a big part here. Asian parents stress education and studying to their kids. Amish are notorious hard workers who mind their own business. Jewish people are skillful in setting up businesses.
Even in underperforming groups, they have those that stand out. Most of them have the traits mentioned above.
Lets not go on ethnic stereotypes, really?
Broader sense the ethnic groups you named value education, also a sense of family, hard work and adhering to rules.
None of those groups holds a monopoly on business accumen, hardwork or education.
The fact is, there are more poor dumb ass white americans on welfare than blacks americans.
Every group that came to American went through some period of discrimination.
I forget who it was that recently said they were tired of the culture in their community of victimhood.
Asking for reperations contiunes that legacy of being a victim.
All they are doing is teaching the next generaton of victims.