I didn’t say it wasn’t valid, I just said it’s disrespectful. Generally, it is. While you’re ok with it, not everyone who’s fat is ok with it.

It’s disrespectful to refer to someone as “the fat guy” too, perhaps moreso.

I’m not sure exactly what you said, but if it was “a small, thin woman that was either born in an East Asian country or has East Asian parents”, then that’s pretty weird.

It may have also been unnecessary to describe the person at all. It depends on the context.