How do you know Americans hate diesels, they don't really have enough diesel cars on sale to form that opinion. Ford don't sell any diesel powered cars in America, they reserve diesel power for their large pick up trucks. lorries and vans. Petrol engines are getting smaller in America too. Ford introduced the Ecoboost engines out in America before we got them in Europe, admittedly there's were of a larger capacity at first, but then you can't replace a V8 with a 1.6 or 2.0. They have however replaced some of their V8's, or as an optional alternative, with a V6, which is more powerful, lower emissions and a lot more economical and they are doing quite well. The fact is an independent test in America, has found VW have cheated the emissions figures, something that under current EU tests would never have shown up. VW have also admitted to have cheated. VW's shares have already taken a big hit, their worth has been seriously damaged and that is before any costs for fixing the issue or any fines. Even after the fines will customers receive any sort of compensation, as the cars economy and performance will be reduced, the cars will no longer be what the owners bought into under those terms.
As for reliability, I have a workmate who worked, up until a February, in a VW/Audi dealership, their is a certain petrol engine in the range that likes to melt it's pistons, he was performing compression checks several times a week on cars with that engine and none without exception had suffered the same fate. Then there is the coil pack issue they had several years ago, so many coil packs were failing, dealers couldn't get hold of enough to replace them. They would only replace coil packs as they failed, knowing full well the car would be back within a week, maybe a month for another coil pack to be replaced and so on and so on until they had replaced all the coil packs. Then their is the Passat diesel wiring loom failure issue of several years ago where once the loom failed the injectors are no longer controlled and keep fuelling and the engine can not be controlled and it eventually breaks.