Rev. Michael L. Pfleger said he once asked a child why he participated in gang activity. The boy responded, “This s here is all we’ve got. You fight for what you’ve got, even if it’s nothing.”If you lock two lions in a cage and starve them, they’re going to fight, the pastor at St. Sabina Catholic Church said.“That’s not the gang’s problem; it’s ours,” Pfleger said. “We created the environment.”At an all-day summit Friday on gun violence hosted …