It takes a nation to protect the nation
I was puzzling over the many statements from the EU regarding the Brexit negotiations, that there can be no free trade agreement without the free movement of people as well. I still find this a simply non-sensical assertion.
Paul rightly pointed out that just because ships stopped at docks with goods does not imply that anyone on that ship can get off, because instead of exchanging goods at UK docks, our ships could meet EU ships in the channel and exchange goods there. It would be a lot harder, but its still do-able. And nobody (in their right mind) can assert that any two ships crossing on any ocean should allow free movement of people between those ships.
But what do these phrases mean exactly? Well, the free movement of goods between two countries is really the non-tariff trade of goods. But the EU is saying there is no difference between the free movement of goods, and the free movement of peoples - it is not possible to discriminate between these two actions, they are inseparable.
In other words, the EU is insisting that there is no difference between trading in goods and trading in people, i.e. slavery. The EU is insisting that we should treat people as objects to be traded, just like we treat goods, because the two are inseperable.
The EU is insisting that human trafficking and slavery are legally equivalent to goods trading, and should be treated as such.