Ignoring the massive cost, legal hurdles, and the opinion of the residents/government/outside powers, if you could magically grant independence to certain territories or form new bigger nations from existing ones with no repercussions to yourself, what new countries would you create?
Please treat this as a non-serious post, let’s not get into a massive political debate, those never end well.
Its war then.
A, I already called dibs on the land.
B, I offered you more than a fair agreement where you would profit immensely in exchange for providing us a small amount of protection.
C, I would urge you to reconsider, because what do you think East America is going to do when they realize that your country is vulnerable due to a lack of trade income? If you carry forward with this war plan of yours, we’re going to levy economic sanctions on you and the only way you will be able to get materials in is from the north-south corridor between Canada and Texas.
You called dibs with handwaving. The international court of dibs doesn’t recognize such chicanery.
And regardless of your legal standing, I plan to offer unfettered trade access to Redneckistan to the TJ cartel. Combined with the natural skills of our friends in Montana and Wyoming, I think it would be unwise to begin a war. Sanctions or no, I can’t see you coming out ahead bringing Portlandian hipters to the front lines - whether or not their mustache might belong to a civil war general.
Accept our rightful ownership of British Colombia and Baja California (both Norte y Sur) or be prepared to lose even the claim you have rightfully dibsed.