I hate them because in every apartment I've ever lived in I've had at least one neighbor with a dog that barked all the time. I've easily lost thousands of hours of sleep over the course of my lifetime due to barking dogs alone. And no, earplugs are not particularly effective.
Imagine going to sleep, then waking up to your neighbor's dog barking. You look at the clock, you need to be up in 4 hours for work. You get a massive cortisol spike. The dog keeps barking for at least an hour. It seems like it stopped...maybe you'll get another couple of hours of sleep before you need to get up so you can work another 8 hour shift at a stressful low wage job that you hate with a passion but need to survive. Then the dog starts up again. You try to sleep but you realize it's not gonna happen. Your cortisol is maxxed and you're fully alert, despite being tired. Now you need to go work a stressful job with a neurotic manager that shouts at you while you're in a sleep deprived state in fight or flight mode trying you're hardest to keep up and not make mistakes to avoid getting fired and becoming homeless.
This isn't a hypothetical for me, this is my reality. This is the shit I have to deal with on a regular basis.
I suppose you could say I hate "dog culture" and dog owners more than anything. Hypothetically I'd be fine with them as long as I didn't have to hear them. They'd be fine on a farm or something. But they do not belong in apartments. They also don't belong in grocery stores, restaurants, airplanes, etc. but people insist on bringing them.
But unfortunately I'm in the extreme minority on this issue. Society seems to be in nearly universal agreement someone's right to own dogs trumps the rights of everyone in close proximity to peace, serenity, and adequate sleep.