In the book 'Of Mice and Men' crooks says people at the ranch dont like him because he is what?

In a physical sense, Crooks is disabled as he has a crooked back, which is due to an incident with a horse. There is nothing else wrong with him, except that he is lonely. Crooks is not treated with respect by the other workers, as he is black and they are white, and when the book was written, racism was still very common.