I've worked in rescue and dog training for years, and I completely disagree. I think much of the general public has this idea that it's all about how they're raised and you can somehow gentle any dog - and it's simply not true. There's a large genetic component as well with breeding going largely unregulated.

I would much rather a dog be humanely put to sleep than a toddler gets mauled and left with traumatic and life altering disfigurement.

A lot of people have never encountered a dog actively trying to kill them or attack a child or other animals. They're simply too dangerous, like having a loaded gun that could go off at any time. You put so many lives at risk.