Under A Co-Dependent Sun.

Why did so many people leave Britain to start countries in South Africa, Canada, America, Australasia etc?

Well, very simply, they wanted to escape from Britain.
Politics in Britain has been good, it has been bad.
But what has gone on and on is the social environment of this hell-hole.
There are literally millions of people who have been mentally and morally 'gutted', great fillets of their mental territory divided up and eaten by the savages that rule the roost here.

Because it is all in the mind,or rather out of it, they aren't even aware of it. They go dumbly about their daily business without encountering any apparent resistance to their chosen courses, but they pursue courses which are governed by the maze-traps set up in their minds; still, they are also crippled by the uncertainty and doubt that is fostered by the cannibals probing and violating gratuitously just to establish that they are safe.

But there are some people who are aware and see and fight back.
These are the subjects of the most extreme and virulent hatred and persecution.
And in this age, the dumb and the evil unite culpably to establish an empire, a British empire which tolerates no escape from the tyranny of its disinterest.
Disinterest?
Certainly, for the technique of the repressor is ever to appear unconnected to the events and actions which achieve its purpose, the bloodless murder by mental asphyxiation that satisfies; forget Marlboro, the flavour that satisfies the British is sadism orchestrated to a fine whining background.
Don't believe me?
Where else in the world is there something called a 'semi-detached' house?
What other purpose can it have but to maintain a party-wall between individuals, that drum skin shelter for all the centuries-old techniques of oppression, ie a device to prevent us growing too large?
The new British empire is ever the land of Tim Henman, the tennis player who was bound to lose because the British made him a loser.
And he didn't even realise it.