The first shock you got when you arrive to Europe for the first time is to see how overpopulated the place is, specially the western part.
Small countries like France (five times smaller than Congo) has over 60 million inhabitants. The same for small country like the UK ( smaller than Gabon) also has more than 60 million inhabitants.
The worst case is a micro country like Belgium (just over 30 thousands square kilometers, 167 times smaller than the Congo) has a population of 11 millions inhabitants (365 people per square kilometers).
The first question you ask yourself is how they succeed to feed themselves, in a resource poor continent like Europe?
Why do they make so many kids, when Europe is already the only continent which had send more than half a billion economical and political refugees to other more rich places of the world during the last 5 centuries?
Is that related to the high fertility of their men or due to the cold weather which forces them to spend lot time inside with only one activity left… copulation!
In the past that uncontrolled fertility has made Europe the continent of endless wars. And, today Europe still need to wage endless wars to feed their overpopulated continent.
They need guns to survive. Europeans and their descendants worldwide spend almost 60% of the world budget in military and wars. The US spend 6% in discretionary budget for education and over 53% for military. Similar patterns are found in western Europe.
Unfortunately, Africa is at the receiving end of the gun addiction for our northern neighbors, because they need our resources to feed their bloated population.
Europe should take measure to control its population growth to limit its necessity to aggress foreign nations for resources.