"If Canada was no country but a territory where people were denied the right to have a state to live in,"

To make it even more alike the situation, then, we should say if these were people living in Seattle who are illegal aliens from Central America living there because they were kicked out of their refugee camps in Mexico...

"and if they were launching rockets at the US"

Let's say from Seattle at Redmond instead, with restricted access points from Seattle because occasionally they keep trying to destroy Redmond.

"I think the US would colonize Toronto and declare the city part of the US. Wait no, I don't."

And instead of the US as we know it, let's say the US is just the I-5 corridor from Portland, OR, to Everett, WA. And let's transplant all that area into, say, the neighborhood of Nicaragua or Panama. And let's say all the surrounding countries have declared that the people who live around Redmond must be pushed into the sea. They don't want the people in Seattle who used to live in their countries to move back into their countries; no, they want to help them destroy all the Americans.

What would happen? Redmond would launch the Surface.

You realize Hamas was voted in, right?

1. Elected government? Check.

2. Borders? Check.

They have a state. Not being formally recognized in the UN is just that ... a formality.