"Dear White Fella..." joke

Couple of things you oughta know
Firstly, when I'm born, I'm black!!
When I grow up, I'm black
When I get sick, I'm black
When I go out in the sun, I'm black
When I'm cold, I'm black
And when I get scared,
Gee, I'm black
And When I die, I'm still black
But you white fella...
When you born, you pink
When you grow up, you white
When you get sick, you green
When you go out in the sun, you red
When you get cold, you go blue
When you get scared, you yellow
And when you die, you purple
And YOU got the cheek to call ME coloured??!!