impossible to defend on a logical and pragmatic level.
I just did that several times now. Merkel had the choice between two options, and she chose the one that would be less harmful to Germamy's interests in the long run.
have insisted that it was a very good decisio
It was a good decision given the circumstances and one can proudly look back to in the future.
failure that was literally _years_
Very true, everybody not in Southern Europe was willing to ignore the issue for years, until it came knocking in 2015. Merkel was briefed by the German secret service in 2015 that the refugees might upset the fragile peace in the Balkans. Not exactly something many would like to risk.
assimilation of children does work
That is more or less what is being done with the new arrivals now.
Because they are allowed.
Your ignorance is truly staggering. If you close the border for refugees you will need controls which of course will also heavily affect the traffic with goods. This scenario has been discussed a few times at the Brenner pass at the border between Austria and Italy, the costs would have been in the billions for each month.