China is a communist country
Russia, while they have elections, are still a communist/socialist country
Iran is a religious dictatorship, run by the mullahs, not the 'chimp' they call President.
All of those forms of government are fundamentally opposed to a democracy or a democratically elected republic. Obama, and mant other democrats, openly push for a more socialist/communal form of government, which would be less of an influence in the world stage. Many want a 'one world' government (see Soros), as long as they get to be the leaders.
If you missed out on the difference between the government designed by our founding fathers and the communist/socialist forms of government, then you were failed by our public school system and/or our liberal universities. Read a little history, as did the poster who stated that democratic/republic forms of government have ended in the past because of complacent citizens and miscreant 'rulers.'