Points System = No Freedom of Movement

Britain's Brexit crisis is mainly caused by immigration. But there was no question about immigration at the last of the TV debates (held last night) before next Thursday's General Election. However, Prime Minister Boris Johnson did say a couple of times that, if the Conservatives are elected, there would be an Australian-style points system. Western Europe has had the benefit of freedom of movement since 1945. So my question is: Will there still be freedom of movement throughout Western Europe except for 4 countries in these fractured islands in its North-West corner? Because a points system is incompatible with freedom of movement. And it's not just England, Scotland, Wales and Northern Ireland that have to be considered when it comes to immigration controls; there is the Isle of Man and the Channel Islands.... Borders are porous if loopholes aren't catered for, and controls rendered pointless....