Do The Japanese View Americans As Cowboys Or Elvis Presley?

I met quite a few Japanese when I was in Washington D.C last year. They generally thought Americans are very open people but were very surprised how apathetic/clueless/narrow-minded they can be towards public policy, government, the economy and foreign affairs. I know a few who really looked up to U.S leadership and ended up disappointed.

I have wondered based on some anime I've watched if some Japanese anime's where made to be racially offensive to black people.

Not really, the Japanese just pride pale skin - its a sign of being rich. Black people are associated with ganguro, even though ganguro is more analogous to the spray-tan, bleached hair women.