Plenty of brutal poverty in the USA, even California. Or haven't you smelt the stench of human shit rising off San Francisco? The First World pretty much consists only of western Europe, Japan, South Korea, Canada, New Zealand, and maybe Australia. Those are the countries in which the average citizen can expect a reasonable level of government service and public infrastructure without excessive corruption or partisan obstructionism -- table stakes for being considered "developed" in the 21st century.

The USA is distinctly, profoundly third world. Just because your rich ass is enjoying a pretty good life in the USA doesn't make that not the case; the rich enjoy good lives in many third-world countries.