You mean the Global Economic Crisis caused by irresponsible banking practices? Banks who were bailed out under Gordon Brown, potentially avoiding an even bigger disaster? What do you think the Conservatives would've done in that position? Let the banks die?
What's got to stop is the conditions that leave families with no other option than to risk their lives to escape from the shite life enforced upon them. If we were unlucky enough to be in their situation, I'm sure we'd all do exactly the same.