What can we do?
I think that it all has to start with those of us who do have a will to live recognizing that much of European/North American culture has no such will to live.
When we see people giving up around us, it is easy to give up ourselves. By keeping an "I will survive" attitude, either it will be infectious and catch on with those around us, becoming politically meaningful -- or it will mentally prepare us and our children for individual survival during the inevitable Muslim onslaught, whatever form it takes (probably immigration and cultural intimidation, as we see in Europe.)