Why is Bigger So Hard to Like?

Throughout the novel, Native Son, Richard Wright portrays Bigger's character in a way that makes him so hard to like. Often in novels, the portagonist is our friend or someone that we're rooting for throughout the novel. Many novels we're familiar with feature the hero as the portagonist. In this case, Wright must have made Bigger easily distainable for a reason right? I've been pondering that since Bigger first began making awful decisions and acting crudely in Book One, and since Mrs. Elliott briefly spoke to my table about it, alluding that it must be of some imortance. I'm still unsure if I have an even close to right answer but this is the best conclusion I could come up with on my own. I think that Wright wanted us to feel distain towards Bigger because he was trying to prove that the racism and hatred of white society had led Bigger to become the sterotype that white society thought he was. Because Bigger and other members of his race were not given opportunities to become more, they eventually lost hope and became the sterotypes the whites thought they were. Therefore, Wright wanted us to turn our dislike towards white society, as Bigger embodied the sterotype they helped to perpetuate. This is evident in other characters, for instance, Bessie constantly pities herself and says how all she does is work and tire herself out, and then drinks so that she can escape. She doesn't see herself as ever having a better or happier life because she feels that would be impossible because of the barriers the whites set. In her time, she really didn't have much of a choice, so it's easy to understand why she became who she was and simply pittied herself because unfortunately, there truly was no way out of the life she had in that time period. I don't know if this makes any sense so tell me your thoughts because this is driving me crazy! :) Why do you guys think Wright made Bigger so hard to like as a protagonist?
-Hillary D.

References in The Invisible Man

Throughout the novel, there are numerous references to the real life experiences and encounters of the author Ralph Ellison. For example, the "college" and the "Brotherhood" are two major symbolic institutions in the book that represents movements and philosophies of the author's contemporary period.
The college's ideology seems to be based on Ellison's outspoken friend, Booker T. Washington, whose works advocated for economic advancements while not clamoring for equality or civil rights. The college seems to reject black culture, which many believes it to be an ideologies that essentially turns its back on black culture as a whole.
The Brotherhood can be seen patterened off the philosophies and ethics of the 1930s communist movement that first took place in Russia and later spread around the world, reaching America. This group/organization emphasized clinical, scientific exposition over the emotional appeal that the college presented.