Absolutely agree. One of the questions you should be asked before entering this country is "How do you intend to support yourself and your family"?
If they fail to give a satisfying answer, then they don't come in. Simple.
Did anybody see Traffic Cops on BBC 1 a few weeks a go, when they caught two illegal immigrants on the hard shoulder of the motorway? Even the copper said it's annoying, because all they can do is take them to the police station, take down whichever fake name they are given, and then let them go on their way, telling them to report to the Home Office at their convenience. The two illegal's in the show, did what the many other hundreds of thousands do, they walked out of the police station, never to be seen again.
This Government really needs to realise that it isn't racist to have some sort of immigration policy.