Apparently, fat people are supposed to dedicate themselves to persuading people who've clearly and consciously made up their minds to hate them. This reminds me of those prostitutes who say their clients insist they tell them how great it is for them and how big they are and so on.
Is it not enough that you're getting what you want, you now demand one should pretend this is the main focus of one's existence?
It seems to be a cry for validation. If fat people try to "persuade", they can pretend they came to their decision through a balance of argument, rather than the desire to hate. That opportunity must not pass. There can never be enough people to hate.