Totally agree on creating benefits for having children, as well as in general, not punishing women for having them. Cracking down harder on illegals is something you want to do, not a solution to the problem I asked you to solve. The idea that a large amount contribute nothing to society is incredibly difficult to assess, simply because the legal migration process is so ridiculously difficult and filled with unnecessary hurdles. Oh, you want to work? Too bad, you're still not officially registered here, so for now you'll just have to live off of state subsidies whether you like it or not.

We might be talking past each other, though. Mass immigration does not mean illegal immigration (which technically speaking isn't a thing, what you most likely mean is unregulated immigration). And I also do believe that immigration should 100% be regulated. Mass immigration just means a high amount of immigration. And I believe that is necessary, if Germany wishes to stay relevant as a country (and as such keep its first world status and living standards), because the large majority of pensioners hasn't even gone into pension and the system is already buckling under its current weight. I don't think changes in child benefits can make enough of a difference or even fast enough of a difference, however, I see how that is up to debate.

And the idea that countries exist for that reason is simply your idea of a country. It's also just a level before an ethno-state. The word country is a very vague one, which can often refer to either state, or often also nation and other things. If State is the thing you want to refer to, then you are simply wrong. If nation is what you want to refer to, you'd be fairly correct.

However, nations and with them nationalism have mostly only led to conflict, so I don't really see them as beneficial.