@randahl I don’t think they really want that. Neither the current regime nor sensible US policymakers.
With Ceuta Spanish, Spain controls the Strait of Gibraltar from both sides. Sure, Ceuta makes for a land border between the EU and Africa. It would be easier to ‘defend’ ‘Fortress Europe’ against the ‘hordes of illegal immigrants’ (pardon my language) if the border were the Strait instead of the Ceuta outpost. But I reckon that controlling access to the Mediterranean and Black Sea outweighs dealing with a wave of immigrants every once in a while. That is the sensible reasoning.
For the other approach: MAGA wants to destroy Europe from within. Refugees are the perfect means to drive up tensions, because they give the far right kindling to stoke up the fires of discontent. So Ceuta in Spanish hands suits MAGA fine: it’s guaranteed to keep stirring up trouble, both within and between EU countries. It plays into their hands. They are not really going to try to change that.