Whats wrong with cycling?

Why do people who ride bicycles always get negative responses from those who are motorist? I was riding my bike one day and some lady honk at me and told me to get a car. First off i have two vehicles at home. The only reason why i cycle its for cardio resaons to get myself toned. People need to learn circumstances before jumping conclusions. Im still going to cycle no matter what because im motivating myself to get to where i want to be.