Analysis of RACE OF RACES

I had a feeling gnaw at me,
A gaping hole  left in me.
The hate filled minds I see  
The colour coded guides that speak.

Cursed are those in black  
Saints are they in white  
Red is what they spill  
When asked, what makes man full

Let them work in sun and sweat,
I heard they said, without regret  
Still today they hide in sight  
Death to them that put up a fight.

Look at us dressed in snow  
Look at those covered in coal  
They should stay away from us  
Lest the soot beat down on us

I had a feeling scream at me  
A siren's song sings at me  
The ugly truth I tend to hear   
The black and white we all fea