The more I think about it, the more brilliant I see Gulf of America is.
The only recourse they have is for the next Democrat President to reverse it. But the optics would be horrible. They would have to actively honor Mexico, a shithole narcostate, and put it above America, all for librul woke goodboy points.
Imagine during the Democratic primary debates in 2028, when they ask each candidate "If elected, will you change the Gulf of Mexico back to it's correct name?" That gives the Republicans a ready made soundbites for an attack ad "Candidate Blah Blah HATES America!, Candidate Blah Blah wants to honor another country, Mexico, by renaming the Gulf of America in Mexico's honor!"
There is literally no good answer for that question for a Democrat candidate--say no and piss off your base, say yes and piss off the swing voters.
Also of note, despite the fact that I don't type it a lot, whe I type "Gulf of" in my Droid, "America" comes up as the next suggested word, before Mexico!