Should Portugal close the door on new immigration or should our government be more welcoming to the outside world?

In my opinion Portugal is receiving more and more immigrants nowadays. It is a country of emigrants, because many people come here with the dream of find a job.
In our country immigrants are welcomed; this may be mainly for the fact of our African possessions in the past. Our country Portugal is situated near the sea and connected with all of Europe and in contact with African countries.
Portugal also had colonies in Africa and India. Immigration was very early accepted in our country. So, our government received other people and didn’t ever close the door of immigrants.
Our emigrants like to be welcome in other places, so we have the duty of opening the door to new immigrants.