I hate that so many people think dicks are an ugly part of the body and that I agree with them. Dicks can be incredibly uncomfortable. Dicks can betray feelings. Dicks can be unreliable. There are so many stupid slang words for that which is between my legs.
I hate that cocks are considered cheap and comical. Cocks are weapons, in the wrong hands. Cocks have been the cause of innumerable atrocities against millions or individuals. Cocks provide the owner a good orgasm, but orgasms which are over too quickly. Cocks cause offence, deliberately or not.
The two benefits of having a dick? Being a privileged member of the patriarchy and being able to pee standing up.