As much as that's a trashy ad - I'm happy the message is getting out there - it's absolutely the truth. Watch the auctions you'll see tons of young, broken down Amish horses falling out to kill-buyers all the time. They're also well known for their atrocious puppy mills.
I'm not opposed to people using animals as livestock or work animals - that's a lifestyle choice and their own decision to make. But the laws about animal cruelty need to be followed by everyone in this country.
They also need to learn to preserve their 'machines' rather than using them up and throwing them out. Many of their horses show up to auctions with scars and wounds from ill-fitted harnesses that they've worn for far too long - and they're all far to young to be thrown out. It's because they're see as easily renewable, they can breed as many as they like and brake them out. Often broke in the cruelest of fashions, we have a Perch/Standardbred cross who's tongue has a large scar/lump in it from being tied by her tongue - a common practice by the Amish - similar to a tongue twitch but actually tying. The horse can't wear a bit comfortably at all - luckily after a great deal of rehab she'll go well in bitless options.
Multiple city carriage horses were previously Amish horses, people are so appalled by the idea of horses working in the city, but often they're treated far better than the Amish - treated like individuals, given proper medical care and fair diets.
Look it up, there's more out there about it and I hope this becomes more public - but I hope it's done in a more reasonable way, this was a little childish.
If the ad expires or gets deleted for people reading this later here's what it said:
"We live in the middle of a large Amish community and I just wanted to let people know, that contrary to popular belief the Amish are the cruelest people to their animals. Never, ever give your dog, horse or anything to the Amish. Out Amish neighbor has been given several nice dogs, all of which he shoots after a few months when he finds another dog. People give their horses to the Amish too all the time, because 'they are so good to their animals.' Baloney, the horses are used, abused and then sold to the killers if they manage to survive that long. Don't be fooled, like the old saying goes 'there are three things you never want to be, an Amishman's wife, horse or dog.'"