As Sa'iqa wrote:UK riots were caused by mostly black immigrants over the death of some minor drug dealer...
So I guess we are indeed more civilized. There are no revolutions, coups, civil wars or ethnic cleansings in Europe.
If Africa wasn't brutally colonised and held in a state of artificial undevelopment by Europe for hundreds of years, but instead was traded with but otherwise not interfered with - there wouldn't be so many problems in Africa either, and there wouldn't have been as much immigration of Africans into Europe either who then faced racism and so on whose sons and daughters came to resent their host populations for and that led to racial tensions and a bad social & crime situation today.
Europe treated Africa as uncivilised and did everything in their power to keep them uncivilised and de-humanise them; and this carried on well into the 2nd half of the 20th century.
It's no wonder that there are problems with them in today's Europe although more and more you see a lot more blacks as part of the middle class in Europe and so the problem should correct itself within a generation or two.
I really wouldn't be so quick as to call Europe more civilised though. There were ethnic cleansings pereptrated by White Europeans as Catholic and Orthodox as you and me respectively in the Balkans as little as 15-20 years ago. And you can bet your ass that it can happen again. Yugoslavia was a relatively prosperous, fast developing country up until the 80s.
Roma are despised through Central Europe and the Balkans, their communities are even being walled-off in the Czech Republic (or is it Slovakia).
There are tensions with Hungarian and Romanian minorities in Eastern and South-Eastern Europe, ethnic Russians born in Latvia and Estonia are being denied political rights and have their native language repressed.
And if you want to start comparing Christians to Muslims or whatever; well there are plenty of Christians in the Caucasus, for example the Georgians who attempted an ethnic cleansing of Abkhaz and Ossetians in the early 90s, right up until they got ethnically cleansed right back.
Nationalist Moldovans and Romanians were calling for the same thing in Moldova in the 90s, scared off all the minorities - almost all the Jews fled, the Russians and Ukrainians in Pridnestrovie decided to separate (and were invaded for it immediately without negotiations) while the Gagauz Turks were on the very verge of doing so too.
Northern Ireland was basically a bandit country throughout the 70s and 80s; much like Chechnya except minus the Islamic fundamentalism, Sharia and collatoral damage - but otherwise much was the same, people were kidnapped and ransomed, opposing religious groups were killed or forced to leave various areas, suspected collaborators with the other side were threatened, tortured, killed or had their families subjected to the same, in one case 2 captured off-duty British soldiers were brought to a field, had their kneecaps blasted off so they didn't escape, and were then read the Catholic last-rights before being summarily executed.
All quite far from civilised actually.