Why is it so much harder for this generation to mourn for the Temple then previous generations?

Our reality at this time, in this generation is so far removed from the spiritual reality.  Our lives are absorbed by the physical reality and we find ourselves seeking physical pleasure instead of spiritual growth.

Tisha B'av is mourning how distant we have become from the spiritual world.

from the Shiur, on Naaleh: Holiday of Distance
Teacher: Mrs. Shira Smiles Class: Jerusalem, Echoes of Lament: Tisha B'Av and the Three Weeks