Yes? What about their nuclear policy from the past half-century convinces you otherwise?
1. Nobody would launch nukes domestically, so moot point.
2. Using nukes internationally would be a faux-pas beyond fixing. Every modern, nuclear-equipped nation understands this.
3. The United States doesn't need nuclear weaponry to dispel invaders, or even to retaliate against foreign attacks. Their nuclear weapons exist to deter other nuclear superpowers from using their weapons for petty gain.
Definitely seems nuclear.
Ok. American balloon over China will be shot down. You know the rules about air space, water etc?
Sincere advice: don't assume you have insights and knowledge that is deeper than those from the experts. This is a pitfall for us HN'ers.
I don't understand your point. How does it relate to my analogy of a neighbor of America getting armed and trained by a sworn and bellicose enemy of America who states openly that it's goal is American regime change and geopolitical breakup. Under this scenario, I suspect the US would roll into Mexico and end that sooner than later under the Monroe Doctrine due to the real (or perceived) existential threat. At least, I would hope so - Mexico being in a military alliance with China would be not good.
Also, Mexico entering a military alliance with China is extremely far fetched, how did you even arrive at that idea?
Reverse the roles. American ballon. Mexico getting armed against the US by a foreign superpower and sworn enemy. Would the US tolerate those acts?