Why do people keep harping on her size???

Okay, so Melissa is a bit heavy-set. Who cares? That still doesn't eliminate the fact that she's funny, likeable, and becoming quite successful in the movie industry. It's really a shame how quickly she's condemned because of her weight, and yet, other stars who've done considerably worse damage to their own health are continuously revered. Look at Keifer Sutherland and Zac Efron, two megastars who were both treated for problems with alcoholism. Look at Samuel L. Jackson, who acknowledged that years prior to his box-office successes, he was addicted to crack and living on the streets. At that's only a few. Case in point...NONE of us can afford to throw stones or put on pious airs. I'm sure Melissa McCarthy looks at herself everyday in the mirror. So what's the point in hating on her if it's entirely HER business what she eats?