I should’ve searched it in advance-
it’s over 400million more people and the US is 97% the geographical size of Europe.
I was married to a Scandinavian for many years. I have visited most countries in Europe. In my observation 90%+ Europeans live in apartments or condos, meaning multi family housing. I like American housing of majority single family homes.
Also Europe has much more public transportation. I prefer my car for going places.