I do agree with you here, but the broader problem with immigration is that in the context of your point I'd say that those weren't war torn or economic/welfare

I do agree with you here, but the broader problem with immigration is that in the context of your point I'd say that those weren't war torn or economic/welfare migrants but people who knew that heading to Rome would be for business first. Essentially the type of immigration and it's lax rules in Europe isn't really comparable to labor immigrants, when you can have an entire city area of people who only lives on welfare with 0% interest in getting a job or even learning the language. Which causes taxation to be delegated to an endless spiral of newly arrived immigrants who repeat the cycle. And with that foundation you don't either always get 2nd/3rd generation that are working but instead doing crime. Which drives the demand for labor immigrants down because they ofc don't want to establish themselves in a country that is dangerous. Hence why most of the anti immigrantion policies are meant to only curb economic/welfare migrants and limit for now war refugees.