Living in a migration heavy, booming German city I have to remind everyone that:
1. Migration is not distributed equally, it will mainly affect metropolitan areas
2. Metropolitan areas are usually doing well economically, but housing can become an issue. Not only due to foreigners, but also because people move in from the countryside and tourists need accomodation
3. Metropolitan areas are also not voting right wing
That means the areas voting against immigration are the ones who experience its impacts the least, except for the fact that young people tend to migrate away from these places. If that comes as a surprise to you you didn't look at the numbers.
The argument against migration in Germany isn't rational or economic, it is emotional¹.
The next question woud be whether these right wing parties are actually gonna reduce migration numbers. They don't have any incentive to do so as people vote them based on that — people who vote based on emotion not based on track record. So it happens that under some right wing governments migration numbers are actually higher than under other governments before and after.
¹: I recall seeing a German family on the subway who in shock proclaimed: "Oh mh god, there are so many foreigners" as she clutched her bag. I, a blonde blue eyed guy, asked her how she knew I was Austrian and that she does not need to worry since I have rode with that subway for 6 years and never seen or heard of any crime being committed, but whether she trusts me as an foreigner is another question — usually they mean: brown people.