When you're fighting a menace such as Chick-fil-A, you have to make sacrifices.
Chicago has been a sanctuary city for illegal immigrants for decades. It is no secret there is a link between illegals and drug smuggling. But as of late, the number of Americans crossing the border and smuggling in drugs has greatly increased especially where there is high unemployment as a means to make cash. Chicago and Illinois in general has one of the highest unemployment rates in the country.
Chicago has one of the highest dropout rates in the country. With jobs scarce the uneducated are in competition with illegal immigrants for minimum wage jobs. It's more lucrative to sell drugs than flip hamburgers at McDonalds. Prostitution is more lucrative as well. These illegal activities are at the heart of the increase in gangs. These groups of people who claim a territory and use it to make money through illegal activities.
Chicago has one of the highest number of births born to single women. These children are usually raised by Uncle Sam and have no father around to teach them by example personal responsibility. These children tend to be the ones that drop out of school and get involved in criminal activity to make extra cash while the government pays for their housing, food, utilities and health care. Chicago has been a Democrat stronghold for a very long time. Their policies of providing entitlements has actually taken away the incentive of individuals to become all they can. Why should they when the government is willing to provide the essentials. When a person is made to work for his food, he/she doesn't have much time or energy left for criminal activity.