If there was a Republican president in the White House, during WWII, and we had the same media back then, there would be NO Holocaust survivors.
Explain that?
As horrific as it sounds, I think your speculation is correct.
They would have taken the side of the National Socialist German Worker's Party and tipped them off of major actions, and blocked reporting on the atrocities. Like Rwanda, for instance.
Plus, back then, the gov't asked all reporters not to report on actinides, uranium, thorium, plutonium and so on to protect Manhattan Project Engineering District. Today, the whole Manhattan project would have been outed by Ellsberg-like "heroes".