Canada is within the continent of North America.

And North America is located within America.

The concept of ‘America’ these days does not apply to continental plates

The thing is, we keep a record of how words are commonly used, and that record tells that it absolutely does refer to a set of continents. But, I know, let's not let facts and figures get in the way of random internet nonsense.

You know what I meant

Yes, I know you meant it in jest. Nobody would actually take time out of their day to write such a comment earnestly. We can all see that.