The Second World is the Warsaw Pact, and China is not the Second World. Moreover, Russia's decline is indisputable, and I may not understand the economy very well. However, the vast majority of Russia's exports are oil and other natural resources, just like those Islamic feudal countries in the Middle East, and even not as healthy as Iran's economy
Communism in general was considered Second World.
Incorrect about Russia's economy. Russia's oil revenues are down only 'cause the global economy is performing poorly. Oil prices mimic the performance of the global economy. Considering that, the prices are stable due to reduction in production. If the US, EU and ultimately, China, go back on track, then oil prices will rise, and Russia's currently bigger marketshare will increase its revenues.
No matter what's said, Russia's marketshare is now bigger than its pre-war sales, more than enough to compensate for the drop in gas sales.