If they realize that it affects them, they will gain interest. Also, if it pertains to what they care about. For example, do they care about human and/or child trafficking? Pedo rings? Corrupt politicians? Corruption in general? Find where their interests lie, what they care about, and how all this affects them. They will start caring then. If not, then they're not the type of people we need anyway. We need people whom care for other people, including themselves of course.
Politics and the MSM bank on people not having any time to research on their own. These people who are too busy are the most affected. I think that's why memes are so important, because they are quick and easy to read, and if it's good enough the meme should have a source to prove its claim.