You said a few multinationals ar the only ones profiting from the robust strength of the US economy, which is a typical socialist propaganda line, false, and a conscious lie. And nobody is implementing global socialism. There are some EU types and some liberals who would like to, but they aren't in charge. Kyoto is dead because the US doesn't want anything of the kind and our leaders know that and act on it. Capitalism isn't going anywhere. It is the natural economic system and it is only going to spread and deepen.
The only serious threat to the world economy right now, is security related fears to oil supply due to the war and especially Iran's pursuit of nukes. Longer term we have grand strategy issues with China and Russia, and political issues domestically with our own left, especially its remaining cultural and educational influence. I say remaining because politically and intellectually we are kicking their tails.