Peopleperson is trying to dodge around saying they don't want to live near people who are lower income. Often this is a way of saying, "I don't want people with different ethnic, racial, or cultural backgrounds near me."

It's pretty transparent discrimination, tbh.

It's more the density that people object to, not more people, or more housing. It's when there's an area in the denominator. More density means more cars, more air pollution, more traffic, more noise. More accidents, more time searching for parking and standing in lines. It may not add up to ruin, but it's objectively worse.