It's their marketplace. We're the seller, they're the buyer. They control the rules under which they let our stuff in.
You talked about the cost of housing. We used to mobilize the U.S. housing lobby by saying this was causing house prices to go up. But the distribution of power in the U.S. means that the places where housing costs matter a lot, which are the populous states, have less power than places that grow trees, which are the non-populous states, because of the structure of the Senate. So even though we could mobilize the U.S. lobby by saying, “Give us cheap houses and let the Canadian wood in”, we'd always lose in the Senate. Sorry.