"But the speech nevertheless marks a crucial turning point for the protagonist of Invisible Man, whose journey along the color line of 1930s America has up until now been a steady descent into a hell of racist de- humanization." (Hanlon 77).
The narrator giving the speech in a way makes him a new person I believe. He stands for what he believes in without thinking about what he wanted to say. Every other speech he has given was prepared. The speech transformed him because the Brotherhood transformed him. Before meeting the Brotherhood everything was going wrong in his life. And those things would make any person feel unhuman. The hell of racist de-humanization is still there in his world but according to Hanlon it isn't as bad after meeting the group. He is being rebirthed in a way.
This article was very interesting compared to the other one. I enjoyed it more and it was way easier to understand.