Walter, I don't blame you, it could go on and on forever with endless little questions, by which time the point of the thread will be lost.
The 'Right' parties in Germany, AfD is one, are anti-euro, anti-immigration, anti-Muslim and no doubt many other things which they believe are pulling Germany down. They will appeal to some voters in the same way as UKIP does here and Trump does in America so they have to be considered. These are huge subjects that need to be debated in detail and I don't believe the concerns raised should be dismissed as invalid just because I don't agree with them.
If arguments are presented clearly and logically with appropriate data, they are valid. Doesn't make them 'right*' but that's opinion.
*correct