There are essentially no public trash bins in Japan except in train terminals. People carry their own generated trash with them in order not to litter. Of course, that takes an attitude about public cleanliness which would never take hold in the US.
I find Americans pretty clean, myself. Where do you live, lol?
There are many places in the United States that are very clean. Usually they are small towns.
But what seems to drive leftists, generally, is a strong desire for a lack of responsibility and accountability.
Responsibility and accountability are the building blocks of a safe and clean society.