At 92 years old, George is not likely going to live to see the next decade, but anti-Semitic conspiracies certainly will. The Rothschilds faded from significance and Soros took their place. After Soros, who will be the next Jew responsible for everything bad in the world?
The thing is that Soros is not only cause he is a billionaire target of the conspiracies, but because he is in addition:
So neither Bezos nor Zuckerberg would be a fitting pick and Gates on the other hand is too in line with the status quo, to be a proper substitution.