> the problems that people complained about for decades (costs, bureaucracy, rents, no vision apart from "consume and work")

Insofar as people are actually going over to AfD (and it's not just exaggerated hysterics, the sky is always falling these days...), it's probably got something to do with the issues which are conspicuously absent from your list, which AfD ostensibly addresses, at least more convincingly than the other parties. Namely, immigration. You may not want to admit that as a real problem at all, but that refusal to engage with the issue is the primary reason people line up for the politicians who at least pretend to care about it.

immigration is a scapegoat. it's not the problem. reducing immigration would not improve anything.