Good post, but I think most liberals are fully aware of those living in low wages.   The problem in not one of ignorance, it's finding  pragmatic solutions that work.

Your falling for a small sampling my friend.  Most liberals do not feel whites, or white men are evil, nor that everybody is a victim.  

On the flip side it would a 'lie' to ignore that wealth, power and opportunity, are very unequal in America.     A good wealth distribution chart is an easy way to see enequity of power in our nation.  

Wealth/power have ruled through human history.   It's why Jesus, a non-conforming radical liberal, was murdered.  He was a threat to the upper economic class of his day, both Jewish and Roman.   Jesus earliest followers were liberal/socialist, often giving up all personal wealth.    Jesus early evangilist didn't have TV shows,or diamond rings, and never preached politics.  Most ended in death and poverty, secure only in their faith.