Willful blindness
https://en.wikipedia.org/wiki/Willful_blindness
'Willful ignorance cannot be an excuse': How to navigate complicity
https://www.cbc.ca/radio/thecurrent/the-current-for-december-07-2017-1.4436013/willful-ignorance-cannot-be-an-excuse-how-to-navigate-complicity-1.4436015