My source is that video I posted, which I'm assuming you didn't watch, where Carney states something to the effect of what I stated. This plan creates investment in all airports as the money collected from some private investment is in turn invested in the smaller airports to help Canadians get around the country easier.
There's money in more places than the US. Watch that video and learn from one of the best economists in the world and tell everyone Carney didn't think this is in the best interest of Canadians.