Never. Give up and read something else.

I think this is a case of a book that hit the culture very hard at the time but its attitude has become so integrated that it is now a tired cliche.

This is pretty common: a work (fiction, painting, dance, music etc) takes the world by storm which changes the world so that it comes to seem obvious and predictable. Who is shocked by Stavinsky's Rite of Spring any more?

Interesting to study in terms of cultural trends at the time in central Europe, perhaps - not interesting to read.