He's aping Boris, thinking the crowd will go there.
My take is "the crowd" really could not give a toss.
In fact (whisper it) it seems there are some issues that you can add to any debate to immediately reduce the public interest in it. Much as oil lessens surface tension in water preventing foaming.
Just add a drop of <insert the issue we shall never speak of> to a "raging debate" and marvel as tumbleweed develops.
Maybe that's what happened to the immigration debate. One drop of Lozza Fox and all of a sudden no one cared any more.