Jamil is an advocate for body neutrality - the idea that you don’t have to love your body, to steer away from self-hate without the pressure of having to achieve self-love. It's about working towards a place where people respect their bodies, but don't give too much energy to positive or negative thoughts about them.
I'm confused about why you shouldn't love your body. I mean your body isn't neutral to your life. It's not a utilitarian pair of shoes. It is literally you. At our most detached from it, it's the vessel that we live in which dictates much of our day to day ability, as well as the potential length and quality of our lives. But it isn't even that detached. How we use and treat our body has an enormous impact on our brain chemistry, the "who" of what we are. Our bodies and how we treat and use it impacts our mood, our concentration, our ability to think, to sleep, to relax. We should never feel neutral towards our bodies. We should revel in the abilities our bodies do have, work towards the potential abilities we have yet to achieve (if we want to) and do our best to find acceptance with it's limitations. Because we literally are our bodies.
A healthy way of thinking about our bodies would be to think of them primarily in terms of their abilities. To focus on how best we can treat our bodies so that we can get what we want from them. For how our bodies look, to be at most, of secondary importance. Because what our bodies can do is objectively far, far more important than how they look. And we really, really have to stop thinking of our bodies as separate from us. They are an intricate part of us, not some avatar our completely separate brains are stuck in.
When I was overweight, I didn't like how I looked. But that aesthetic was not enough to motivate me to change my life. It was full acceptance that my weight was likely to have an impact on how well and long I could be around for DS that motivated me to change. And once I found my sport my relationship with my body has become completely and totally about what my body helps me achieve and how best I can treat my body to keep meeting my ever growing goals. Do I prefer the look of my body now? Absolutely. It would be a total lie to say I don't have a very positive relationship with my body's current aesthetic. But is it what motivates me? No. My primary relationship with my body is because it is me and the better I treat it, and the more I get out of it. The better I treat me and the more I get out of me.