Regardless of their nationality, billionaires largely pursue the same interests in order to strengthen their position of power in the political system in which they are most involved.
This is, of course, a conspiracy theory, but the Epstein files, for example, certainly suggest this - as does the fact that billionaires’ companies are all multinational and that it is almost impossible to trace where the incredible amounts of capital in the international economic system actually come from (such as the massive concentrations of capital managed by asset managers like Black Rock).
In short: I suspect that the biggest problem facing people worldwide lies in the power of the respective so-called elites, and I think that they coordinate among themselves in order to remain in power or to expand it further.
This is how I explain the resurgence of Nazi ideology, which is actively promoted by billionaires in very different countries.
In itself, the answer is really simple, at least for the remaining democracies, and a solution would be entirely possible: people would have to switch to decentralized media apps, such as those provided by the Fediverse, and stop attributing so much credibility to legacy media. This would significantly reduce the scope for concerted disinformation, which is the main reason for any autocratic form of government being possible, which is of course never in the interests of citizens.
How this can be achieved is the question, and the answer can of course only be education, because the majority of people are obviously unaware of how they are being duped.