I'm a fat person and I've been assuming the kink community won't want me because of how my body looks. Is there body diversity in BDSM spaces?
History, Community & ProfessionalBDSM communities are genuinely more body-diverse than mainstream sexual spaces, though they are not uniformly free of fatphobia. The community's philosophical emphasis on treating the body as an instrument of experience rather than a performance object contributes to a culture that is often more accepting than the cultural mainstream.
The kink community's relationship with bodies tends to be practical rather than aesthetic. The question that most practitioners are asking is what a body can do, experience, and receive, not whether it conforms to a particular visual standard. That orientation creates more space for body diversity than many other sexual and social contexts.
That said, kink communities are not perfectly free of the cultural attitudes that produce fatphobia generally. You may encounter some spaces or individuals who reflect mainstream attitudes. The difference is that explicit body inclusivity is a stated value in many kink spaces, which provides at least a normative standard that people are held to.
Plus-size, fat-positive, and body-diversity specific kink communities and events exist in several cities and extensively online. These spaces are built around the explicit premise that your body is welcome and that attraction to larger bodies is both real and celebrated. Finding these communities can be a significantly better entry point than general kink spaces.
Practically, some activities benefit from adaptation for different body types, and most experienced practitioners are accustomed to adjusting technique based on the bodies they are working with. A good rigger adjusts their ties for the body in front of them rather than expecting every body to work the same way.
Your assumption that the community will not want you is more likely to be disproved by actually attending a space than confirmed. The best way to find out is to try, ideally starting with an explicitly inclusive or queer-centred space.