Sharia Law being enforced in London by violent muslim Gangs

This sort of thing must be by design of the government. Why would any people toss out their own culture and history in preferance of bandits and terror mongers like the far Extremist Moooo-Slims ?
It makes no sense what so ever and so a person is left asking how would anyone benefit and who would benefit by the chaos that will come out of this.
Is this about divide and conquor on the governments part or someone behind the government ?