Regardless of how he feels, I don't think that he is eligible to play for USA. Don't players have to play two years in a country to be eligible? As far as I know, Point has always been in Canada until he started playing NCAA hockey last year.
It is more of an issue lately. Part of it is talent drain to USA (look at Bellows, scorer of two goals in the gold medal game last year, for instance) given how there are 24 teams there and how money is almost a necessity to play hockey, thus favouring the kids of NHLers. There is also just a lot more international movement now as people find work but retain citizenship. At this point it is almost a given that Canada and USA are going to have players in contention with dual citizenship every year. Most players play for the country where they were raised, which is a good thing. I don't like it when someone like Point (raised in Canada) plays for USA. By the same token I won't like it if Foote plays for Canada at the WJC this year. It somewhat renders international competition irrelevant.