We are already seeing signs that China will most likely supplant the US soon as the new World Superpower. For example, China has announced a massive investment in trade infrastructure around the world to the tune of $1 trillion
For that to happen though, China will have to maintain at least a civil relationship with the US. Their economy is a farce. A farce that will come crashing down and send them right back into poverty if they decide to make enemies with us. Also, for a nation to be a superpower, they have to have a military that can back up their economic might. China doesn't have that right now and won't have that for the foreseeable future. The Chinese military, while powerful, isn't really capable of fighting wars far from home like the US military can. Their blue water navy is still laughable compared to the US, and a strong blue water navy is absolutely essential to the power projection capability that a global superpower requires. Their air force is also still not where it needs to be for them to be a superpower.
Basically, China's military is still very much geared towards defending their homeland and fighting regional wars not far from their borders. And their military is very, very good at those two things, but they are still very far away from being able to do what the US does.
Russia in not our friend. China could be because we have strong trading ties. Your US-Russia-China block idea is stupid.
Our relationship with Russia was actually improving greatly until very recently. I'd like to see that relationship resume. Of course it's hard for that to happen with certain politicians screaming wild conspiracy theories about Russians "hacking" our elections when all they did, at most, was put out some political ads on Facebook and hire a bunch of internet trolls to talk up Trump.
Our relations with China were also improving until recently as well. So for a while there (mid to late 2000s) it seemed like my power bloc was a real possibility.
So you think we are more culturally and ideologically aligned with Russia and China than the EU?
Yes. This is evidenced by the increasingly strained relationship with Europe over the past decade or so. Hell, Germany even refuses to call us a friend now, and they've been calling us a friend since the end of WWII. Apparently we are just a "partner" now. And I have a sneaking suspicion the only reason Europe doesn't treat us with outright and utter contempt is because they are still deathly afraid of Russia and still need US protection.
The thing I find really sad is the US is finding out now that none of our so-called friends ever really cared about us. We were just the rich kid that everyone pretended to be friends with because we had money and cool toys to play with. But now that we aren't paying everyone's way anymore, all of a sudden they don't return our calls or want to hang out anymore.