London Riots?

The following was a quote about the riots in London off reuters.com:



“multicultural society, as the history shows, never works in times of lack of prosperity!

Real calamities always unite a culturally homogenous society-Japan an example; divides even more multicultural ones..

You are right! The changes to the unsustainable social systems are coming! “

I was wondering?

So what we start kicking people out of the country? Once we deport the foreigners,  who do we start on next? And what about those with multi ethnic backgrounds, which country do we send them to? How far back do we go since only the Indians were here in the first place and we decimated their civilization. Do I get to stay because I have 1/2  British Ancestors? Are there really any homogenous societies left?