Here's my two cents.
Harley hunts EVERYTHING. Possums, squirrels, skunks. He NEEDS his rabies shot. He and my whole pack get rabies and distemper shots only. Plus there are bats flying around at night here and bats are big carriers of rabies. I might have a different opinion if one of my dogs was directly affected, but in all the years I’ve had dogs (my whole life) nothing bad has happened from shots.
Sylvia, the only one we had as a puppy, got more for her puppy shots and the foster mom gave Morty all his puppy shots too.
RB Angie developed IMHA blood disease and died within 3 days. I don't think it had anything to do with her shots because we were late that year and she didn't get them yet. At the time we thought she got IMHA because we didn't vaccinate her, but now I'm glad we were late because now I would think the shots did it.