I feel ya. My neighbors have 8 or 9 dachshunds. They are all outside 24/7/365. They bark non stop. I have a huge yard, but if I step outside, they know and they start barking. Okay, I've lived here for a year, get over it you yappy little bastards. So anyways, if THAT wasn't bad enough, they got some sort of huge hound dog mix last year that barks INSANELY loud. So now they have 10 incessantly barking dogs that put a huge damper on me trying to enjoy any time outside. I finally screamed at them last week. I tried to not say anything for the longest time because, like you, I feared retaliation towards my dogs. But I blew up and yelled instead. Human nature, I guess.
I hate people like that. People always say "Can't you just talk to them" but in my case, WHY? I mean, do they not know they have barking obnoxious dogs? Ten dogs barking all day and night isn't something you just don't notice. If my dogs are outside and bark once, I make them stop or put them back in the house. It's just curtousy. Apparently some have it and some don't.