Except the US tells Mexico in the last book they have no plans to overthrow them. And given what the US is going to be going through in the reconstruction of the South, in Utah, and Canada, and the host of other issues that the US is going to be facing having just fought a brutal three-year long war that came with the revelation of genocide, they probably just don't care as long as Mexico doesn't make any trouble.
I respectfully disagree. Also, even if the US told the Empire of Mexico that it would not overthrow their regime, that promise was probably made by the La Follette administration, and may or may not have been adhered to by the incoming Dewey administration. After all, what good is a promise in the 191 universe? Also, who is to say that the people of Mexico themselves wouldn't over throw the Emperor, and maybe some Mexican general would like to see him self in charge of his own country, instead of some French aristocrat?
In my spare time I enjoy doing landscape paintings. The other day I went to an exhibit and saw that another artist had done a painting of one of my favorite spots in a nearby state park. A place called Zephyr Cove. I looked over his painting, and then I compared it to mine on my phone. After comparing the two pictures I quickly realized that the other artists had gotten everything all wrong, and his landscape looked nothing like mine, even though we had both painted images of exactly the same scene! He had gotten the lighting, the mood, and the perspective all wrong, and it just irked me to no end that another painter could look at exactly the same scene, which I had looked at, and not paint exactly the same landscape painting that I had created! The never of that other fellow! Who does he think that he is not following the artistic example that I have already set down for others to follow? -- You see Joshua, this is exactly how you sound to me, and for some reason you seem to think that only Joshua is allowed to make speculations over what may have happened following In at the Death.
A while back I stumbled across some of your earlier postings in this forum regarding the 191 timeline, and found them to be very interesting. Your material is what prompted me to start posting things in this forum, but how entertaining would it be if I simply copied your scenarios? Do we have to be enemies simply because we don't see eye-to-eye about events in fictional universe? After all, this is nothing but entertainment, and no one here can say that they have an authoritative control over it. Unless of course your name happens to be Harry Turtledove?