[Lancey Howard]

The biggest way in which the left eroded the culture was through the DENIAL that there even IS an “American Culture”.

Exactly correct.
America has no culture; America is instead a "multiculture". Throw in a dash of silly "diversity is our strength", and you have a recipe for disaster.

[MrB]

I heard some brainless twits (2 adult women, one senior high girl) discussing schools in the area,

and ALL of them were using ONE criteria to judge how good a school was -

you guessed it - “diversity”.

As Boortz says, when that word is mentioned, throw all sense of individualism out the window. Everyone is to be judged by the GROUP that they belong to, not who they are as an individual person.