"Willful ignorance" refers to intentionally choosing to ignore, avoid, or reject knowledge or information. It is when a person willingly stays unaware or refuses to learn about something, even though they have access or opportunities to do so.
Aliens taking over the world is a scary thing, sure, but humanity drowning in willful ignorance while the corrupt consume more and more of their livelihood... that's both a tragedy and a galactic embarrassment. (investmentresearchdynamics.com)
But though I've seen willful ignorance on the part of people who should know better («People just like crap!») (gamesetwatch.com)
I believe you should review your statements about willful ignorance, a person whom can not believe in something greater than themselves is ignorant. (religion.blogs.cnn.com)