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.
We'll see, since I've already laid claim to mine, you can lay claim to yours and be like buffer country between old America and Cascadia.
In exchange for your country of Blagraria providing a layer of separation between Cascadia and the states, we'll offer you favorable trade agreements that you can then use to parlay into income from the old America.
And if they do something stupid like trying to attack you to take you over, we'll have your back with our massive trade financial resources and natural resources.
And of course we'll make sure to blanket Nevada in solar cells and set up distribution networks and we'll sell you solar electricity at fantastic prices.