That is the hight of stupid blind devotion. The cause is pride. I have relatives that are the same way. My elderly mother, who thinks no democrat can do any wrong and a far left niece, oey vey. Never looks at the facts just listens to screechy Olberman and Maddow and reads the dailyKOS and HuffPo.
Pride is the root of most of our sins and [willful] deception.
I have discerned that the reason most libs ARE libs is for the simply reason that they desire to feel good about themselves. Acknowledging they support a guy that would do something so evil would be a devastating blow to their own sense of “I’m a good person”.