The Europe as we knew it is fast disappearing. The post WW II soul searching and self recrimations about "what we did", particularly by the Germans, French, Swedes, Danes and Norwegians has created this "politcal correct thinking disease" whereby many people there feel ashamed of their origins and racial identities.
There are many different races in the world overall but many within quite small areas of the world as exampled by Europe. It is not just down to Caucasion, Arabic, Asiatic and Negroid.
With any race comes culture which may be tribal, traditional, religious but hopefully progresiveness influences all for the sake of humanity.
Western Europe is in a demographic dilema in that their breed rate has fallen well below the rate of 2.1 which is required for any culture to survive. Their breed rate has fallen below the point of recovery. There is no economic model that will support it.
So who is going to populate Europe over the next 50 years?? Your guess is as good as mine.
www.gatestoneinstitute.org/10940/europe-islamic-future