I'm going to call for better kennel and racing regulations instead.
That sounds like a good answer to me.
I guess you need to decide if the good makes up for the bad... if the good kennels outweigh the abuse/overpopulation/etc.. I don't really know anything about racing, so I don't know how the two compare... if one is more prevelant than the other. Calling for better regulations will seperate the two, but it seems that with every call for a new law or regulation, there are always positives and negatives, and it ends up being settling for the lesser of two evils, so to speak. So I'm sure it will be a long process of deciding what is most important to you, and what is in the best interest of dogs and people alike.
Good luck with everything, and thanks for looking out for the pooches.