What do you see as the most influential source of mass thinking or the “manufact

What do you see as the most influential source of mass thinking or the “manufacture of consent” in 2023 America? How would Walter Lippmann feel, for example, about the influence of social media on political activity or consciousness?
Here are the readings:
Reader:
Sun Yat-sen, “Fundamentals of National Reconstruction”
Mohandas K. Gandhi, Autobiography, excerpts
Deng Yingchao, “The Spirit of the May Fourth Movement”
Ho Chi Minh, “Selected Writings”
Kwame Nkrumah, “Neo-Colonialism: The Last Stage of Imperialism”
Franz Fanon, “Black Skin, White Masks”
John Maynard Keynes, “State Intervention in the Economy”
Eleanor Roosevelt, “What I Hope to Leave Behind”
Walter Lippmann, Public Opinion, excerpts
W. H. Auden, “The Unknown Citizen”
Josef Stalin, “The Socialist Drive”