Lack of “diversity” is their strength. I’m not speaking of how much melanin their employees have in their epidermis, nor whether they have outdoor or indoor plumbing...I’m talking about the shared culture, that has in common specific values that are undeniably positive. If everyone in the country/orginization ascribes to a collection of positive values, regardless of melanin or plumbing, then that country/orginization is destined to succeed.
Finland, Sweden, Denmark, Norway, and Holland used to be the least diverse of the European countries, and if you want to find an example of socialism working to some degree, it is in these little countries. When there is a sameness, small group, and common identity, socialism fits right in. Socialism works in your family, for instance.
Enter the Muslims and they find this vast social welfare state perfect for not working and raising a huge family. One way or another, socialism destroys. Finland has a Muslim population of 0.2%, so it's fairing better than Holland, for instance. Most Finns are hard workers despite socialism, even if they aren't particularly cheery folk (highest suicide rate in Europe, last I heard). I traveled around Europe with a Finn, and I think he smiled once. It was the culture, he told me.