There are wealthy and poor people all across the country that do or do not participate or relate to any of those named things.

You have identified a very specific type of economic class, which has nothing to do with "race" and/or ethnicity. I also doubt Canonical is only seeking people who "summer" in Martha's Vineyard, regardless of their skin color.

Nobody said they were. That was an example to explain how questions like these can be classist.

Exactly. That said, some standardized tests have been accused of class or race bias merely by the demographic distribution of outcomes, which requires a lot more explaining than asking whether "Does Buffy's Jaguar leak oil?" has a potential class bias.

> That was an example to explain how questions like these can be classist

The op asserted classist == racist in the US. Something I requested elaboration on, and has yet to be offered.

OP asserted "probably", so not ==.

In the U.S. class, income, and race are correlated for various historical reasons. Obviously "correlated" means "on average", not a rigid relationship. But discriminating based on class is very likely based on correlation to produce a disparate impact based on race.

How disparate, and how bad that is and even I suppose whether it's bad, are hotly contested ideological questions.

>You have identified a very specific type of economic class, which has nothing to do with "race" and/or ethnicity

Please elaborate...