What is it about modernity that alienates man?

What is it about modernity that alienates man?

Please examine the issue of alienation in European history, from HOBBES, and LOCKE through the INDUSTRIAL REVOLUTION and then to the HOLOCAUST. What is it about modernity that alienates man? From what or who is man alienated.Why? (DO NOT USE internet use sources to write and analyze. it is not a RESEARCH paper)