Disclaimer: I have a dog.
But what can you do about terrible owners? Are we going to take dogs away from owners that don't clean up poop or how do you handle communities that don't think their dog needs a leash.
That’s unfortunately a part of living in a society. We can’t always agree on what priorities are worth our limited resources. We’ve generally agreed children are a priority and choose to enforce those laws more often. For every person annoyed by bad dog owners, there’s somebody who annoyed by laws not being enforced against noise pollution, poorly parked cars, yard maintenance etc etc. My only suggestion is to get engaged to try and get them enforced if you feel it’s a major problem
We have laws against animal abuse. Some of these laws have strong teeth and can put abusers behind bars for years.
I have two dogs, and they're both incredibly happy. They enrich my life, and I do the same to theirs'. I don't want the state telling me I can't have dogs. That's a kind of liberal fascism that goes against the grain of this country's ethos.
There are dogs suffering in shelters, but there is suffering all around, everywhere you look. Orphan children, homeless people, cancer. If you start passing laws against everything, we'll wind up living in a bubble.
Find negative externalities and tax them if you want a better way of dealing with problems. Don't ban dog ownership.
To your point about kill shelters, I think the humane society has largely helped fixed this. There was an article on HN this week that claimed shelter killings was reduced from 20% down to 2% based on the efforts of the humane society since the 1970s.
I may be biased as a dog lover, but most of your arguments seem to be based on bad owners. If we can stop bad ownership we should do so but let’s not throw the baby out with the bath water. I don’t think bad parenting existing should be an excuse for abstaining from having children either, unless we regress to a misanthropic world view.