I never said anything about mandatory spaying and neutering laws; that wasn't what I meant. I meant it as educational - in your face educational. The vast majority of dogs should be spayed and neutered. What I see is that many people don't do that, then dogs that should not be procreating, are. I do not believe that well-bred purebred dogs should become extinct.
I do think that there are a lot of people out there now who want to help somehow with the horrendous conditions they see in other countries so they are working to import dogs and find them homes here. Or trying to rehabilitate unstable dogs and putting them out in the community. This is part of what I was saying when I said free-for-all.
I would like to see some links for your numbers in the first part of your post, as those seem like an awful lot.
The numbers I would really like to see are how many pets are euthanized DAILY in the U.S. simply because they do not have homes. I absolutely believe we have a pet overpopulation problem, and that it's shameful. There is also a lot of ignorance about pet ownership with people leaving their pets in cruel conditions and not feeding them properly or getting them medical care, etc. Individual states have laws about how pets must be humanely kept, but few know what their laws actually state.
I don't think pets are the same as children, but I know I care for mine in a pretty similar way. I also know that it's the law in my state to provide food, shelter, medical care, and humane living conditions to pets. Sometimes there are gray areas when pets are kept outside alone with little care, feeding and shelter. I'm not really sure why anyone would want a pet who's kept that way, it can't be very fulfilling. Dogs crave being part of a pack and are at their best when part of a group.