It probably means California gets divided. From Cabo San Lucas to the Oregon border is almost the distance from Key West to the Canadian border. That's a huge distance to traverse in the 19th century, even if the parts south of San Diego aren't likely to be thickly populated due to the lack of water.
And given that large cities like Tijuana or Mexicali are unlikely to develop, it means that Mexican (and other groups like the Chinese, Lebanese, etc. who often traveled through Mexico to immigrate to the US) immigration will end up elsewhere, like Arizona, New Mexico, and Texas, and California will be a less common destination.
That doesn't follow. How does that mean the Dakotas don't divide, when there were plenty of reasons why they did? Or more importantly, why California wouldn't divide, since this exacerabates the problems between Northern and Southern California and expects the people of Cabo San Lucas to have something in common with the government in Sacramento over 2,000 km away, let alone travel there in the age before automobiles, planes, etc.
And given that large cities like Tijuana or Mexicali are unlikely to develop, it means that Mexican (and other groups like the Chinese, Lebanese, etc. who often traveled through Mexico to immigrate to the US) immigration will end up elsewhere, like Arizona, New Mexico, and Texas, and California will be a less common destination.
The California brand becomes even more world famous. Florida and Hawaii both have lower populations. Drug smuggling from Mexico becomes even more intense and harder to police. Mexico's standard of living is slightly higher than OTL. San Diego has 1.5X population plus California Disneyland, while LA only has 0.75X as many people (but with Hollywood). Dakota joins the union as one state, California is split into two states with the dividing line being northern LA suburbs. Nothing else much changes lol.
That doesn't follow. How does that mean the Dakotas don't divide, when there were plenty of reasons why they did? Or more importantly, why California wouldn't divide, since this exacerabates the problems between Northern and Southern California and expects the people of Cabo San Lucas to have something in common with the government in Sacramento over 2,000 km away, let alone travel there in the age before automobiles, planes, etc.