Paul Rubens would disagree. In the medieval times fat women were considered attractive, that's why beautiful women were painted as being plump. That's where the word "Rubenesque" comes from.

Whether a fat woman is considered attractive is in the eyes of the beholder. Some people consider fat women attractive. Many do not. That's fine.

To make a blanket statement that no fat woman is or has ever been considered attractive is just your personal bias.

Fat people don't have to meet your personal standard of attractiveness to be worth loving by other people who do find them attractive.

And for the record, I'm not fat. But I have friends who are and this message is what makes them feel like no one will ever love them.