Wait. Stop and think about what you just said.
What was ANY dog before it was a breed? A wolf, then a ferral dog, then HUMANS selectivley bred them to create breeds. Yes, this was thousands up to one hundred years ago, and I agree that now we have enough breeds to suit any purpose, but if you are against the breeding that took place two hundred years ago when there were only about a hundred breeds in the world, then you would't be for many breeds. Bullmastiffs (1800s), Chesapeake Bay Retrievers (1880), Jack and Parson Russell Terriers (1800s), Australian Cattle Dogs (1903), Airedale Terriers (late 1800s/ early 1900s), Alaskan Klee Kais (1970s), as well as various breeds of coonhounds (1700s through early 1900s)
all of these are just a few off the top of my head (exact dates looked up)