Why do you think concept of Volksgemeinschaft was so popular among Germans particularly during the Weimar Republic and the early days of the Third...

During the
Weimar Republic, Germany was badly weakened and was often in chaos.  The country had been
devastated economically and psychologically by the end of WWI and by the Treaty of Versailles. 
The reparations that had to be paid and the taking of much of Germany's coal hurt the economy
badly.  The taking of Germany's territories and the restrictions on its military hurt the
people...