What do you mean fall? It will remain a superpower regardless, it has much international backing and trade agreements. It is very unlikely to be suddenly die away.
Unlike most other countries the US has not made itself an island.
Well I think a USSR-collapse scenario is likely for the USA.
Noooo, the USSR was made up of occupied countries that moved for independence the first chance they got. The US is made up of the 50 states, and they're not going anywhere.
It has nothing to do with that. The soviet system was destroyed from within, because they knew,
it was not possible to have this economical system working.
I mean, if the USA is continues to be ruled by socialist dictators and multi-national corporations, that do not act
to protect itself from oil-producing countries, China, Islam, and NWO-policies,
but that act to enrich themselves,
than you are facing becoming a minority,
and your states will be taken over by Mexico, or worse.