I didn´t have to leave. It was my choice to do so, as I did not feel comfortable with the negative changes. You are totally right, as they settle they build their own communities and take a piece of every country they come to. This has been going on for decades now. They don´t care about any laws in any country, as they have their own Sharia, that all countries must accept. They should just be thrown out, back to the ghetto´s they came from. All cooperation and charity should cease to exist. Unfortunately it´s hard to do that, as they sit on enormous oil and nature resources. On the other hand, if they got totally isolated from the rest of the world, they would be forced to trade what they have for what they need.
Anyway, it´s actually not sad for me at all, as I found a great country to stay in, and built a family here and business to live a perfectly normal life in a country I now call my home.