Now we live in the age of nukes.
We live in an age of touch choices ... I appeal for the choice of HEART! ... The choice of love and unity! The choice of positivity! ... The choice of truth! ... The choice of onness! ... The choice with the banners "WELCOME! LET US HELP EACH OTHER FOR A BETTER WORLD ... OUR WORLD!"
By the way ... you know about immigration I've always maintained a stance of allowing three kinds primarily:
1. Children between 6 and 10
2. Undergrad students
3. Grad students
They can be eligible for work and stay if they do satisfactory at the universities, and show responsible behavior in fare manners (anyone will get angry with violence, which is nothing to be blamed for...).
The 4th, which are workers from other nations, should be allowed in and then respectfully let go to their countries. IF they wish to stay, they must agree to take language courses, culture courses, and show a wish to integrate. Perhaps write an essay over it.
Every immigrant must go though HIV/AIDS and other STD tests. Not only that, the immigrants who tend to integrate among the locals, wish to settle in with a local ... and is a valuable human resource ... should (infact) must be welcome and accommodated.
We must only check whether they can bear their expenses for around 6 months (or 1 year maximum) in Poland without having to be in trouble. But usually I've heard that our fools in other countries check their bank accounts. Which is very easily manufactured, plus, the wrong people tend to have no shortage of money. The good people, usually from the middle class, those who we would actually be the better immigrant (and later a respectable citizen with equal rights - I am anti deportation, as I see it stupid if someone now have adopted my country).
So yes, there are laws which need to be repaired. If you see clearly, my suggestions are also in accordance to the psychological terms of the individual. Those ages are the best times for getting them to integrate.
I again say, that married men and women who want to immigrate with their teenage children should be "last of the list". They will never be able to integrate. They can come if they really have no other option with them. This can always be checked.