Justin Trudeau has built a bank dedicated to using public-private partnerships to fix Canada’s crumbling infrastructure — partnerships that burden taxpayers with extortionate interest rates that benefit wealthy members of the rentier class.

Last fall, 59 percent of Berliners voted to nationalize the big landlords’ housing stock — only for city hall to throw up barriers to implementation. The impasse shows how real estate lobbyists and weak-tea progressives combine to thwart the popular will.