I immediately cede all urban areas to the wolves. Any good people there are fools and their DNA should not befoul the post-Fall civilization.
That's how you have to approach it, if you work within the current system you simply have to accept that certain parts of the country have to be left to the animals.
At some point of course the governments will collapse, and there will be war. Negroes are going to attack whites, muslims will also attack whites and christians. You will have many factions fighting each other including various muslim groups fighting each other. All the conflicts from the middle east have been imported to Europe. This will happen across large parts of the western world. I suspect the fighting will begin in Scandinavia, probably Sweden. It might start in France too. Then it will spread to UK, Belgium, Netherlands etc.