Some people are just plain ole' cranky!
I have great neighbors. Prue, my dog, barks most of the time when she sees someone she doesn't know or if there is another dog. I can get her to stop and of course, do make her stop. If I can prevent the event altogether, I will. If I spy the upcoming upset, I start prompting Prue with a "no barks" demand and then keep it up, so she knows to shut the heck up!
I have one neighbor with two dogs - a boxer and a schnauzer... both bark like crazy, sometimes. We all try to keep our dogs quiet.
If I am walking Prue and run into a neighbor with a dog, we head off in the other direction. No questions asked, it's just common sense. Sometimes we are out at 3 or 4 in the morning, so dog barking is not what we want for anyone trying to sleep.
Sounds like your neighbor needs more fun in his life. Ignore him. Sounds like he may never change.
You can come and live on my road.:):):):D:D:D