I don't have any overtly hostile discriminatory views as far as I know. I know I don't have a good idea of everything there is to know about other group of people(not even my own for that matter), so I probably have some erroneous assumptions about them, but I about no group do I feel "such and such really is true even though that isnt politically correct to think that". I would be totally open to considering any assumption I make about any group of people to be erroneous.
However I do have the fear that I might be uncomfortable interacting with several groups. Mostly because I am afraid I'll not know how to interact with them and offend them somehow and have no idea why. I have mostly white, male friends. I always wonder if that is indicative of discrimination of mine that I am not aware of.
I also have this fear that a mistake I make due to an assumption will make someone think I am racist or whatever, and they won't believe it was innocent.