Where there isn't a Will, There's a ... Waffle

Britain's Prime Minister, David Cameron, addressed a conference on Global Security in Munich (remember September 1938?) over the weekend.
Refering to this, today's The Times main Leader (page 2) states:
"Multiculturalism...
"... has, sadly, failed.
"... instead of tolerance flowing from mutual respect, multiculturalism has led to alienation and atomisation. Some minorities, under no constraint to integrate, neither feel nor wish to feel part of the British mainstream."
Some people from other countries, well aware of this and quite happy to add to the UK's problems, nevertheless take up permanent residence here.
The British Government is in a position to prevent foreign men from using marriage as a means to do so - but lacks the will.
If David Cameron had announced that he is closing that loophole with immediate effect he would have said something of really great benefit to his flagship Big Society project.