Like everyone has already stated it is about choice...While you guys in the UK don't have a choice either do those in the US who are against docking...
I'm in the US, and I absolutely have a choice...I may choose to work with a breeder in the states and ask them not to dock a tail, I have a choice to import a Boxer from a country that does not dock tails. You have the same choices I do, right?
If it is not about cosmetics then the AKC should re-evaluate their rules the same way they did with cropping..
ABC...the ABC makes those decisions. And you have the choice to get involved if you feel strongly one way or another.
I see alot of Boxers with tails, many of my friends own them, and the dog I bred Josie to has a tail, so I've grown used to them and could go either way - point being, I have that choice.