The debate is going to go on forever. Personally I'm getting tired of all the rhetoric. Either like it or walk away.
To many riders who choose to practice and learn dressage, it's a whole new world. It is helping many riders come back to riding, those who cannot physically handle sitting in a dressage saddle, or who's horse may not be the next Olympic hopeful. I've seen it first hand and talked to MANY people both sides of the border who are thrilled with the idea.
This is opening up dressage to a whole new group of people! Be proud that "your sport" is appealing to a bigger audience, and people are finding a true value and a systematic system to improve themselves and their horses.
When you get right down to it, it's just basic riding, but to knock apart something that can be good for is only showing your own ignorance.