Why not desirable? It'd be very desirable for immigrants to adjust to local society. If people are not willing to integrate and assimilate their kids into host

Why not desirable? It'd be very desirable for immigrants to adjust to local society. If people are not willing to integrate and assimilate their kids into host society, they should not come. We should not see people as economic unit who just produce value. People and society in general is much more complex system. One common denominator in vast majority of europe is not being a muslim. And many of issues with immigration does raise from this fundamental difference. And I'm not saying to not let in any people from muslim countries. But they should denounce their religion the moment they get work permit. And don't raise their kids accordingly.