Aussie floyd, it's usually just done for fashion/cometic reasons, not medical or for fighting. Just like every other dog that is shown with crops. If crops showing clean heads get the points over the ones with ears then dogs get cropped.
Dogsavvy, there is a huge problem with people either unwilling, or unable to manage the dogs properly these days and it is getting worse as years go on.
But as much as you wish it the dogs will not become extinct, it is simply not possible by any means, government funded or otherwise.
So unless you can somehow find another means of approach to the experiences you have had I think you may live in turmoil for the rest of your days, and thats not a real healthy way to live.
I used to wish the same about junkies ( I seriously thought I was an agro junkie magnet for a while lol) every where i went I was getting harrassed but I realised no matter what they will still be around, and more and more of them every year flicking needles onto the pavement or screaming for a dollar.