Agree with everything you just said. My wife and I (mainly her) rescue French Bulldogs. They are popular so a lot of people get them without realizing all the health issues, then give them up once they realize the money and work involved. 2/3 of our current rescues have had the IVDD (spinal) surgery and are doing fine. One has also had palette surgery in an attempt to open her airway a bit more. None of them should be walked if it's > 75F.

We had another die from a ruptured spine and another die in my arms from a massive heart attack at 2 years old b/c of a genetic heart defect.

Obviously the rescues spay/neuter any dog that comes in. I wish I knew of a better solution, but we do what we can to help these animals since we have the means.