Ignorist
A person who is unwilling to accept proven information as fact, or unwilling to learn new information. Often a follower of the ideals of Ignorism. Truly believes that ignorance is bliss.
P1: I read on the internet that the moon is made of cheese.
P2: Don't be such an ignorist.
P1: I don't know what that means and I don't care.
P2: Don't be such an ignorist.
P1: I don't know what that means and I don't care.
Ignorist
Someone who you're not sure was racist or ignorant first, but you're damn sure they're both
Look at Phil over there, coming out with his usual UKIP ignorist claptrap