Earlier quoted context omitted.
[flagged]
Not sure about refugees, but we are for sure in dire need of migration from skilled workers - health care sector is an example. It's still too complicated to migrate and on the other hand it's to still to difficult to remove criminals. The former government improved the situation, but did not fully solve the problem.
Many parts of Africa have below 80% literacy rates[1] and that's in their respective language; coming to Europe would likely mean learning a new language as well as learning a completely foreign country. If we're speaking about Germany specifically, Germany didn't colonize as many places as the British, Dutch or French so they are unlikely to speak German.
If you want skilled workers, why not simply train those workers locally?
[1]: https://worldpopulationreview.com/country-rankings/literacy-...