I absolutely agree this will impact all of North America, but equating the US with North America is simply incorrect.

I don’t mean to belittle your justified concerns, but Mexicans and Canadians would like to remind you that North America != USA.

Will this ever not be appropriate?

I can see it.

Can someone explain how the PM has both a yea and nay vote? I’m genuinely confused.

As a simple Canadian man having been to Niagra Falls several times, I defy humanity to engineer a way to pump that much water.