I agree with Hunt's hypothesis to a certain extent. I think when a reader sees a part of themselves or can make a few connections to the characters of a novel there is some empathy that builds. A lot of the time this is why readers have favorite characters because thy can relate to these characters. Novels and other written media have been tools in convincing and inspiring readers. An example of novels being used to convince and build empathy with readers would be propaganda (not saying human rights is propaganda), but this is an example of readers being inspired and building empathy. Novels have proven to be a useful tool in empathy and I believe they have had a role to play in human rights.
However, I do not think that these novels have been one of the biggest factors in human rights. If these novels never came out I think that there still would be human rights. I also think that now with the use of social media and technology that today's novels play an even smaller role in human rights. The epistolary novels from the 18th century have had a larger impact on human rights than the novels we have had recently. I do not see this as a problem as it seems to me people are just building empathy and a passion for human rights outside of novels and using multiple resources.