It's necessary to address the concerns and beliefs of those who are taken in by the fraud, or who don't recognize the nature and significance of the issues for other reasons. If by philosophy we mean reasoned and thoughtful analysis, then it can address the moment, though not by confronting the "alternative facts" but by analyzing and clarifying what is at stake, whatever the issue is. Beyond that, what is needed is action: urgent and dedicated, in the many ways that are open to us.
I am not sure just what Marx had in mind when he wrote that "philosophers have hitherto only interpreted the world in various ways; the point is to change it." Did he mean that philosophy could change the world, or that philosophers should turn to the higher priority of changing the world? If the former, then he presumably meant philosophy in a broad sense of the term, including analysis of the social order and ideas about why it should be changed, and how. In that broad sense, philosophy can play a role, indeed an essential role, in changing the world.
Bohemian Grove seems to be a kind of frat house affair. Bilderberg [philosophy] may be marginally more serious. The CFR is transparent. You can read their publications. In the 18th century it perhaps made some sense to conjure up the Illuminati and Masons. Not since.