Why should US citizens deeply care about Canada? It's not their country, they don't live there. Don't tell me Canadians lose sleep thinking about the well being of US.
You don't have to deeply care about Canada to oppose annexation threats.
> Don't tell me Canadians lose sleep thinking about the well being of US.
A Canadian prime minister said Living next to you is in some ways like sleeping with an elephant. No matter how friendly and even-tempered is the beast, if I can call it that, one is affected by every twitch and grunt.[1]
A partnership goes both ways. Caring about a partner is caring about yourself.