"No child deserves to be brought up by a morbidly obese, not-very-mobile parent"? What a completely cuntish thing to write.
I am 20 stone. I hike, swim and cycle with my kids (I can't run due to a pre-weight gain injury, so have limited mobility) I am also an excellent role model, intelligent, beautiful, successful in my career, a pillar of my community, liked and respected by my friends and neighbour and loved by my partner of 20 years. My kids are loved, cared for, exercised, praised, encouraged, disciplined, challenged and fed healthy food.
My obesity is one tiny aspect of me, and for someone to suggest that it makes me unsuitable to parent is one of the most ludicrous things I've read on MN. Fortunately, not one iota of my self esteem is predicated on what some anonymous sort posts on a forum, but I imagine lots of people have read this, been hurt, and failed to comment because of aforementioned cuntish attitudes.
As for the Daily Fail story referenced in the OP, I hope it's one of their usual provocative, bullshit, left-out-a-lot of pertinent details articles.