I'll try to keep my personal response as short as possible. I think that one item isn't likely to make us bigoted, but the general culture of art and media of a given place and time can.
1. I understand how art/media and society relate in the following way. The customs of a community, which is to say a given subset of society, affect the views and biases that go into the creation of a piece of art/media. This piece of art/media is distributed more widely and the customs it reflects go out and affect the world views of many communities, which is to say something more like society as a whole. If a given piece of art is singular in the views it expresses, then it won't likely change anyone's mind on consumption. If the views expressed by that piece of art are reflected by other contemporary pieces of art, then it can affect culture.
Example: One guy writes a book that glorifies the abuse of women, but all the other books released around the same time as his condemn the abuse of women. Because the general consensus is that abusing women is bad, the general audience will view his book as strange or foreign and view it with suspicion.
Like I said, I'm trying to be brief. My understanding of this issue is more philosophical, so if any scientifically minded people could share their understanding of the issue, that would be much appreciated.
