They are losers, and it's the government's responsibility to take care of them -- for the sake of human rights. It's nobody else's responsibility -- the society runs better by spinning off losers (those who do not contribute to business).
BTW, you bear a huge responsibility to your kids!
By another way:), losers always have excuses to tell why things do not work out for them, don't worry about that! This time the excuse it: they don't have sales expertise, and I can garantee you if they acquire help on sales, they will have another issue that screws up things.
It's not about brotherhood, not about blood relationship, it's about business -- and business has to work!