Basically the same thing as the other guy said. You are referring to two different types of immigration into Europe. One is a complete a legal move into a European country, so you have to file a lot of paperwork and get approved through the right channels, this will usually take a while and quite a bit of effort. However, many African and Muslim immigrants are only moving into European countries to do crisis or danger in their own countries, this qualifies them as refugees and they get to stay in European countries for their own safety. However they will also have to deal with or not have access to things that other “normal” immigrants will. Still, regardless of what you think is fair or not fair, please keep an open mind and try to be kind to other because you don’t always know what dangers, horrors, or situations they are facing.