does race , gender and labour play any role in the narrative?

It does completely. In fact the whole novel is concerned with this. Referencing quotes and page numbers in my copy would take up too much space on this forum. Please read the GradeSaver summary link I'm giving you. You will quickly discover your entire criterion there.

http://www.gradesaver.com/the-interesting-narrative-of-the-life-of-olaudah-equiano/study-guide/short-summary/