The only reason you're thinking this way it's because you're thinking about problematic migrants, but there are many others you don't see. They don't need to become French, Spanish, Dutch, etc. They're perfectly fine feeling from $country in $eurocountry, going on with their lifes.
Europe is not the US, it can't be, and that doesn't mean we're at fault of everything. Many poor migrants come and do ok and have the same opportunities and challenges that others who fail.
But somehow is always the same subset we think about.