You make it sound like there was an actual negative impacts. I haven't seen much "horrible" data on that front. It certainly gives ammo to fearmongers, but how does this make it a less good goal to strive for?
What really gets me is headlines like “German far-right capitalizes on migrant crimes,” as if those politicians were happy the crimes had been committed or consented to the policy decisions that led to them occurring.
[0] https://www.reuters.com/article/us-europe-migrants-germany-c...
[1] https://www.thelocal.de/20190415/german-far-right-capitalize...
[2] https://www.irishtimes.com/news/world/europe/germans-shaken-...