I think the majority of people here aren't saying they'll starve without the CB when their partners are earning £60k+. They're grieving for the loss of income and raging at the disparity where households with £98k still get the benefit. I understand that. I do, however, feel that the majority (and there will always be exceptions of course) of people who earn that kind of income will manage without their child benefit. They just need to go through the adjustment process and budget accordingly.
We live in an expensive part of the country, my DH earns less than £60k and I earn buttons, so don't even come close to the threshold, but we accepted that if the Higher tax bracket was used for removing the child benefit, we'd manage. Of course life would be harder. Of course we'd have less money to spend generally and would have to budget much more carefully. DD might have to do without the latest trendy trainers and the second car (which seems vital right now, even though I only work part time) might have to go.
No income is guaranteed and though we all make decisions on how big our family is going to be based on what's coming in before we conceive/have our children, life is always going to get in the way and put challenges in our way: job changes; loss of overtime; redundancy; illness; bereavement. Removal of a universal benefit is a big challenge but families will survive.