I'm not religious anymore, but I think it's like papal infallibility, which is a ridiculous man-made tenet, like what I believe most religious tenets to be, are man-made after the fact.
I truly believe a woman's weight is a political issue, and if one young woman out there can see me and not feel crummy about herself, that's a good thing.
... being a feminist means that you believe in civil rights and social justice.