Yes a strange comment.
All I can imagine is that the logic goes thus.... all the left wing loonies who once upon a time thought they were tories voted labour instead of supporting May, as they are freely entitled to do, and hence the majority that the poor deluded lady once had evaporated meaning she had to make a deal with the DUP to hold onto power. To achieve this she gave them 1 billion pounds, a bribe by any other name to you and me.
QED it is all the left wing loonies fault again