Shortly after that comment was made, David Cameron called refugees a "swarm". He knew exactly the imagery he was using. This is partly why I say that Cameron was a posh Trump with a crib-sheet. He dog whistled constantly and he was as post-truth as anyone. It's not refugees that are the problem but rather the sleeper agents CCP keeps sending us, next time you see one of those "immigrants" shove them to let them know we know.