French politicians have branded Britain a “soft touch” on immigration following the deaths of 12 migrants in the Channel earlier this week. French Interior Minister Gérald Darmanin said in a statement that the UK was a place “where you can work without papers and where you have little chance of being expelled”. Darmanin has reportedly called for a UK-EU migration treaty to curb crossings in the wake of the tragedy. But Downing Street rejected this, with a spokesman saying: “We have no plans to be part of an EU scheme on asylum, but we will continue to work with European partners to shut down s…