Comparing apartment sizes (i.e. excluding single-family homes) makes more sense in a conversation about family-sized apartments.
In my very limited experience, US apartments in expensive cities are often tiny as well, washer/drier in-unit is not a given (whereas any apartment without a washing machine would be considered archaic/unlivable in many places in Europe), and the most economical option to get more space is to move to a single-family house.