" it doesn't mean that her self esteem is any more able to withstand such bloody horrible personal comments"
It will have to be. Everyone knows precisely what is involved with being "famous". She is not "just" a young woman any more, she is in the public eye and she chose to enter a competition to put herself there and thus put herself up for scrutiny. As I said, she will always be too fat or too thin or criticised for something else.
She is not vulnerable in the same way, say, Susan Boyle was - she was clearly clueless about what was going to happen and could not cope. Jesy is what appears to be a feisty "with it' young woman who is now living her dream of fame. She would have been well aware of what went with it. You need to be a certain sort of person to be in the public eye like that. If she doesn't have it, she needs to get out before she's damaged.
Celebrities like her deliberately put themselves in the public eye. Its not like she was captured on someone's phone and made a spectacle of without her knowledge or consent. On the other hand, I do have sympathy for those who are thrust into the spotlight through no choice of their own (Fifi Geldof springs to mind off the top of my head - she gets commented on yet she is only in the public eye because of her father and not through conscious choice. Unlike her "worryingly thin" sister Peaches). I save my concern and sympathy for those unwillingly thrust into the limelight by circumstance, not those who enter a national televised competition solely to gain fame.
Oh, and I have not made any horrible personal comments and I am not a sheep.