I don't think it is quite as simple as lorry drivers listening to the news, hearing about queues at ports and turning back. They are contracted to take a load, and unless they are owner drivers there is little they can do, sadly. I think this situation is probably a combination of poor management here and a bit of electioneering from Macron. He needs to show he is taking the health of the electorate seriously, and to be honest, any leader who is careless enough to leave their borders open knowing there is an added viral problem deserves any criticism they get. The tabloid press, with their jingoistic war like attitude to fishing boats in the Channel have added fuel to the fire.