Enter a Trump supporter in a "Make American Great Again" hate pursued by a sane person.
Sane Person: "You know that asshole you're supporting because he's an asshole? You might want to sit down for this. Brace yourself. Ready? Okay, here goes. That asshole is an asshole."
Trump Supporter: "Um, yeah. I knew that. Make America great again! U! S! A! U! S! A!"
It's hard to see how this ad hurts Trump, as it doesn't tell Trump supporters anything they don't already know. It'll probably help him. And while lots of Trump supporters love their own mothers, sisters, and daughters, they don't give a shit about anyone else's mothers, sisters, and daughters—or nieces, aunts, stepmothers, and grandmas for that matter. And they don't see the connection between their not giving a shit about other people's mothers, sisters, and daughters and other people not giving a shit about their mothers, sisters, and daughters.
This isn't just a problem with Trump supporters specifically. It's a problem with conservatives generally. They care only about them and theirs. You and yours can go fuck yourselves.