It's probably both. If they don't want poor families moving near them, that's classist. If they more readily assume a black or hispanic family is poor than a wh

It's probably both. If they don't want poor families moving near them, that's classist. If they more readily assume a black or hispanic family is poor than a white or asian family (as an example), that's racist. For example, seeing a family of any race with obvious signs of poverty (large family size, rundown vehicle or none at all, shabby clothes, etc) and not wanting them to move in would be classist. But assuming a black family is poor because they don't have obvious signs of prosperity (very nice car of the right brand, very nice clothes that aren't loud, few and well-behaved children, etc) is racist if the same class heuristics aren't used to determine if an asian family isn't poor. Although classism is its own problem, it's also very often just a more palatable presentation of racism. In particular, if your baseline class assumption about various races is different and you don't want to associate with people below a certain class, the effect will be racism.