You can keep posting, but as I said at your last rant, your words about bloodied and bruised children is all I need to post.
As for the rest. .. read slowly so you grasp it.
There is training and there is applying protection for your children. One doesn't exclude the other. You might want to ask your behaviorist if that really is confusing to you and you're not just ranting trying to take attention off you bloodied and bruised children. A child's safety takes priority over anything. Since you keep touting that you have a behaviorist and work training daily..albeit with little success, I make no apologies for only giving safety information. It absolutely seems to be utterly lacking.
As for saying to put down your dog, silly of you to leave out the part about if you really cannot stop the biting.
I really envy the bubble you live in thinking rescues don't deal with the reality of euthanasia. Many private rescues have the luxury of only taking on adoptable pets, or ones they have foster homes willing to keep forever if necessary. Many so called no kill shelters do the same. For most rescues, even if they don't personally put animals down, they reject dogs that they know will be euthanized. In my real world, people in rescue are experienced and responsible enough to know every dog cannot be saved.
Save your rants. I will never feel any regret for caring about the safety of dogs...or being appalled at your own repeated nonchalance about it.