What's the magnitude of the discrimination within categories of whites? Do white British make twice as much as white ethnic Polish? Do white British barely ever associate with white ethnic Polish in private gatherings? Do white British cross the street when passing by a white ethnic Polish at night? Are their schools that are 90% white polish?

Do the info pages for individual schools in London prominently display "country of origin" information, so white British can ensure they don't accidentally send their kids to a school that's 90% white ethnic Polish? http://www.cps.edu/Schools/Pages/school.aspx?SchoolId=609951.

Or are Poles in London seen like say Jews in the U.S.? Sometimes the butt of a mean joke or nasty comment, but otherwise not situated fundamentally different from the majority group?