the meme is pointing out the willful ignorance induced blindspot that liberal smugness makes impossible to address -- the same willful ignorance that makes this meme feel like it's doing nothing more chastising.

and these conversations are necessary since history has already proven that we keep doing the same thing over and over again and we keep getting the same results -- yet americans chose to ignore history and have fooled themselves into believing that we can continue to keep doing the same thing anyways.