It may be unlikely that a dog will bite. But it is absolutely not guaranteed, and that is what we wish you dog people would understand. Many of us will never trust a dog, not even yours, not even a guide dog - you just do not know, and many of us don't wish to risk our children or ourselves like that. Stop making us, stop trying to persuade us the risk is worth it.
And yes, dog shit is a massive problem, it is terrible for our waterways as is the waste from the farmed animals that end up on your plate - we are seeing more awareness of the latter, and people are reducing or giving up meat - I do believe in due course we will understand dogs are not so valuable that their waste (and bitey attacks) warrants their survival as a species, except the very few - guide dogs, sniffer dogs etc.
As for stroking one, that would absolutely raise my blood pressure and stress me out. Different strokes for different folks, haha.
Dogs are not better than people. Dogs are better for people who
- like to feel superior to something
- lack social skills enough that they can't work out human relationships and rely instead on a dog to fill that void
Dogs adore you because you feed them, and that's why they are happy to see you. That's really all there is to it. And a dog will be fine rehomed - as long as it is fed, it does not care.