Hard to say as many of my friends, coworkers, and family are almost all red pilled. I find showing them the full context of news videos helps out. ie: The full video of Kyle Ritten house and not a clip cut to hell from CNN. /pol on 4chan has good stats on certain topics as well. It really depends on what topic you want to red pill some one on. I have found a documentary series I think is the best all encompassing red pill but I haven't finished it yet. It is very graphic but once I am finished I'm going to check with the mods to see if I can post it.