What are the drawbacks of Modernism?

Modernism was an important aesthetic and cultural movement that is generally thought to have begun in the late 19th century and to have remained extremely influential at least until the WWII era. Though it is an important historical period, especially in terms of the art it produced, the Modernist era also wrestled with some seriously negative ideas, and these could be seen as potential drawbacks. For instance, Modernist literature often explores the lives of individuals that have been alienated from society, or who feel isolated from the culture they live in. Moreover, many Modernist writers tended to suggest that, since many traditional values were destroyed by advancements in science, philosophy, and more, existence was meaningless and lacked any kind of solid foundation. Now, it's important understand that these were and are important concepts to explore. That said, these ideas could also be seen as the drawbacks of Modernism, as they advance a thoroughly pessimistic and depressing view of life.