Not exactly surprising that Tim would defend him. He is Batman's sidekick.

"That is presumably why he sells so many comics."

If Batman were real, she'd have a lot of questions and complaints about his methods. Taking a kid sidekick, yes, but also the whole vigilante thing. It seems... inefficient at best, downright cruel at worst. It's not like supervillains are the cause of most crime, even in Gotham. Crime is caused by systemic problems that are better fought through politics than punching.

But Batman isn't real, and she's never had to question the ethics of superheroes before.

"I just suppose I have something with a rich white dude dressing up in a scary costume and punching poor people, then dragging underaged kids into the mix."