what are some things holden dislikes in teh catcher in the rye?

You mean so many things Holden dislikes! Holden's attitude to life defines his character. I don't disagree with what Holden says about the hypocrisy of human beings, it's just that he goes overboard never allowing himself to see the beauty in others, even himself.

Consider motivated for ourselves we all are. During the day most people, and I include myself here, put on certain fronts to convince people what we think we want them to see us as. Holden calls many people out on this, and he is often right. Still humans are complex creatures and can do and feel many genuinely good things for others.