It's a pity, because otherwise it's a very good map. diplomat42 (in a note to the Spring 1901 turn) wrote that
So...as I said I'm not a mapmaker, but I think a possible solution to Mexico's power is a Central American power.
and theangrycastle replied:-
If it can be done without weakening Mexico, Spain, or Columbia too much
This could certainly reduce Mexico's advantage considerably, but it would give the already beleagured powers in the Caribbean area another problem to deal with.
Is that the answer?