Merkel is to blame for all of this crap, no one else
The EU’s grand “open borders” concept was idiotic from the start, because it put the continent’s security in the hands of the weakest link, and Europe has a lot of do-nothing politically-correct wimps.
So as soon as anybody tried to exploit it - and Europe also has lots of poor African and Asian countries at their doorstep - it was inevitable that disaster would ensue.
The EU, a poor and jealous attempt to copy the United States, is flawed structurally.