You can hear some nervous laughter and even see this one dumb b*tch not wearing a mask actually laugh and smile after he literally dismissed the importance of their lives.
The majority of Trump supporters truly believe he's one of them, when he wouldn't piss on them if they were on fire. He'd be more likely to piss on them if they WEREN'T on fire. They're being pimped and that clip is a rare recorded moment of Donnie letting them know "YOU DON'T MATTER TO ME".
That little dismissive hand wave and brushing off of their entire existence when he talked about the flood
To be able to have zero self-respect and somehow still believe you're superior to all others