Former Secretary of State, George Schultz astutely observed, "Democracy is not a spectator sport." (You can purchase a tie with that timeless quote on it at the Ronald Reagan library.)
IOW, it's up to every one of us to discuss these issues with our friends and especially with our children. It's a lifelong commitment. FreeRepublic is a good place to start. There is a wealth of information here.
Discussion, I agree, is good. However, the causes of the apathy run much deeper. It is a symptom that we are no longer a constitutional and self-governing people. De Tocqueville makes some keen comments regarding the need for the adminstration of government to be localized in order to have a well educated and interested citizenry. The power of government is remote and our role continues to diminish. A recipe for tyranny.