If you’re 37 years old, where do you get off criticizing a 19-year-old’s body? Just wondering, Julie Klausner, what right you have to decide that Zendaya has an eating disorder or that her body is a bad image for young women?

The truth is, you don’t have that right. Let’s make it universal for a second and make the unanimous decision that if you’re not the person in a body, and you’re not the doctor of the person in that same body, you cannot make the decision that that body is unhealthy. Humans are beautiful because we all come in different sizes—and besides, people like Julie Klausner? Aren’t medical professionals. If you were a high school or middle school girl during the early 2000’s, you remember the images of Mary-Kate Olsen plastered on the front of every gossip magazine, showcasing her spine ridges and detailing her struggle with an eating disorder. If you’re a girl today, you probably even personally know someone with an eating disorder. For someone like Julie Klausner to make a joke like “Zendaya's ultimate retort to Giuliana Rancic is starving herself down to the size of one of her elbowz” indicates not an attempt to negate dangerous beauty standards, as Klausner defends, “I will never stop criticizing celebs who perpetuate dangerous beauty standards for a generation of girls who grow up thinking they're fat,” but an insidious attempt to cut young women down based on their bodies—which is no different from what various men and women do all the time. Klausner, you’re not funny and you’re not a feminist—you’re an asshole.

For another thing: Not everyone with an eating disorder is going to be dangerously thin. You can have girls that are thicker who are still starving themselves or suffering from bulimia or binge eating, but if they’re losing weight, nobody cares. By the same double-edged dagger: Not everyone who is thin has an eating disorder. We criticize larger women all the time, and it would be foolish to act like the criticism thin women face is the same—but you can’t accuse every young woman you see who’s thin as having an eating disorder. You’re not a doctor, and you’re not familiar with their eating habits. How are you going to say you’re “pro-woman” if you’re calling girls anorexic? It’s a lose-lose situation for girls as it is, and Klausner, you’re making it worse.

We can’t forget that there is, as some have pointed out, an inherently racial quality to the criticism of black women’s bodies: There’s not a time in history since colonialism began that black women (and other WoC) have not had their bodies objectified and criticized and mocked by white people. Julie Klausner denies that race had anything to do with it, but there’s still a history behind this kind of taunting that needs to be identified and that we need to be aware of.

I work with teenagers on a consistent basis. I’m a mandated reporter—I have to be looking out if any of the students I know look like they’re in danger or in trouble, and I’ve got to make that report. 19 is the cusp of “adulthood”; it’s a transitional age where you’re technically an adult but you’re still lumped together with teenagers. As I said before, humans—especially teenagers—come in all shapes and sizes, but if you don’t interact with a kid regularly (and I doubt Julie Klausner is ever in close proximity to Zendaya), you don’t know what their normal is. You don’t know their life, and you sure as hell don’t know their bodies. It’s awful for girls to be told that they’re unattractive because of their weight regardless of what end of the scale they’re on. There are girls who look like Zendaya, and I can tell you from experience that the majority of them are healthy. Zendaya proudly refers to herself as a “string bean” in her response to Julie Klausner—and her body positivity is more important than the “concern” of people like Klausner.

Zendaya responded because she will not let anyone shame her or her body, especially when that person is almost 20 years older than her. In this way, she’s even more of a role model for young women: Don’t let people make you feel like garbage about your body. If they try, tell them what’s what. I’m so sick of the endless criticism of teenage girls and their bodies: when Zendaya speaks up for herself, she’s also speaking up for countless other young folks who have been hearing smack talk about their bodies.