Belief systems, not countries, are the problem. Having said that though, the country, China, is probably the biggest threat-- to the entire world. Islam is the biggest threat as far as belief systems go because it practices murder and genocide and converts by the sword in today's world when the peoples of the world should have left all that behind centuries ago.
Here's the truth about the US: American citizens have been left behind in the minds of their elected officials. The current U.S. politicians see Americans as dumb and vulnerable, ready for exploitation. The American education system has been dumbing down its students for years.
Most U.S. asnd other politicians are globalists who see a future for the North and Central American continents that resembles the European Union and run by a communist/socialist government. These "elected" officials are pushing for extreme changes in the U.S. regardless of the wishes of the citizens of the United States. Globalism makes strange bedfellows like the Kennedys, Clintons, and Bushes being allied, all on the same side, regardless of how Americans vote. They belong to secret societies and attend meetings where the future of the U.S. is decided without the vote of the people.
If you and the people you know and love want the US. to continue as a country, you face some difficult decisions including overthrowing the current powers that are directing your country toward a far different future than you can imagine.
There will be no middle class and little freedoms for those who work for a living. The standard of living for Americans will plummet, the American Constitution will no longer be a viable document of freedom.
Forget the critics--they're afraid and suffer from the Ostrich Syndrome. Try not to let anyone push you around, including your elected officials. You must ask yourself is it worth the effort--do you want to fight for what your ancestors fought to give you? You have to take a stand for your way of life now before you're forced to--at that point it may be too late. You will lose everything.