Currently, Europe is facing an enormous immigration crisis with thousands of refugees (African and Middle Eastern) forcing their way into countries such as Hungary, Germany, France, GB, and other European nations. The EU is currently asking members to take in thousands of these refugees regardless of how their populace may feel.

 

http://blogs.wsj.com/briefly/2015/09/07/...-a-glance/

 

Demographically this could have a very large, lasting effect on the EU members and its existing population. Also, the monetary cost for many of these nations to place these refugees on welfare can be very taxing.

 

While I think it is sad that many of these refugees have been displaced due to war and terrorism (partly due to western interventionism), I don't think the solution is to open the borders and allow millions of them into Europe, especially when many of the refugees are leaving for the wrong reasons. Despite what the media portrays, most of these refugees are young men with moderate wealth (enough for them to pay the human smugglers at least). Many are also simply abandoning their spouse(s) and children to seek European welfare. Rather then open the border, I think the west should seek to rebuild these floundering nations.

 

This video provides a good, simplified explanation on how open immigration into the West isn't actually benefiting anyone except an extremely small minority, and actually hiders development of the nation migrants are leaving.

 

https://www.youtube.com/watch?v=LPjzfGChGlE

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