I agree with you. The best dogs are mixed. People need to neuter and spay also. I don't think people should be allowed to have a dog or cat unless they neuter and spay. There are clinics that specialize in free or inexpensive neutering and spaying, even in my small rural community.
Harm, my Malamute/Husky/Lab mix was intentionally bred. Apparently a lot of people wanted that type of dog. My children got Harm for me when my Golden/lab cross was killed right after my husband died. Harm's dad belonged to a neighbor and used to spend the days with me while they were at work. I loved that dog, so the kids thought I should have one of his pups right after Skippy died. Not a good idea at the time, but I love Harm completely now. Still, he isn't Skippy.
ALL purebread dogs are formed by a mix of other dogs.