Is there a term for the increased credulousness with which people sometimes seem to approach increasingly, obviously problematic topics? The more blatant the ir

Is there a term for the increased credulousness with which people sometimes seem to approach increasingly, obviously problematic topics? The more blatant the irregularities in this race, where a black woman had a serious chance of becoming governor, the less seriously everyone (including her opponent, who oversaw the election in his official capacity) took them. I mention race because it is clearly a likely central motivation for malfeasance in this case, an election for a state with a history of disenfranchisement of its large black population.