That surprises me, Bobert, as you're usually fairly perceptive. The number of problems with our nameless GUEST's theories is incredible. To begin:

The concept of a global banking syndicate forming 500 years ago is ridiculous. The cutting edge of economic theory at the time was mercantilism, the idea that there was a finite market and the only way to increase profits was to edge out the competition. No one using that theory would even have considered a global power-sharing conspiracy, because it would have decreased their profits.

While the number of people who control the majority of the world's money is frighteningly low, it is not measured in hundreds but at least tens of thousands. Further, many of these wealthy persons want absolutely nothing to do with each other, as a great many are Arab oil magnates, not noted for their cooperation with the American and European elites.

As to the possibility of a Malthusian population crash, it is quite likely, but utterly opposed to the interests of the ruling classes, either the actual ones or GUEST's conspiracy. That sort of thing destroys the value of wealth, as well as the infrastructure that said wealth is based upon. No way in hell they'd provoke it.

Finally, race specific weapons. Yes, it is possible to target a virus at a specific genotype. Unfortunately, those genotypes are fairly broad, and take a long time to differentiate. A weapon targeted at Russia's population would be primarily aimed at Slavs. However, in order to achieve total annihilation, it would also need to include the Germanic Rus, who invaded in the late first millenium A.D., and the eastern steppe peoples as well. This would result in a weapon whose potential targets included more than half of all Caucasian Americans, including the majority of the persons GUEST claims are behind this conspiracy. Ethnic weapons only work on isolated populations. Any attempt to use them on a nation as large and pan-ethnic as Russia would be doomed to failure.