Contrary to the parent comment and what you will read here: Not very. This won't change for a long time. Syrians from 2015 earn a lot less than the median and more than 70% rely on welfare that pays out more than they earn [1]. Up to 90% of Ukranians rely on welfare [2], costing the German Government half a billion dollars in in welfare checks alone. Marrocans are three times as likely to rely on welfare / to be jobless than Germans [3]. There are three times as many jobless people with a history of migration than Germans [4].
This is not a political agenda. These are just facts.