usa found a chance to displace france from the west africa

glances at Vietnam Not famously a winning move.

euros won't even dream of having independent ressources colonies, and get them from american middleman instead.

I don't doubt for a second that US economic planners are hoping to bend the European states into full-blown satraps, in the same way they dominated Japan, Mexico, and the Philippines. But I also see a wildfire of fascist movements in Western Europe that would suggest these efforts are doomed to fail. Much like the US tried and failed to colonize Germany during the 30s and ended up ceding half the continent to Russia into the end of the century, the game they're playing in Africa (and, to a lesser degree, the Pacific Rim and Latin America) is predicated locals doing a ton of the work for them. That's giving these areas big nationalist movements that ultimately aren't allied with the US as a whole, just a few Trumpian icons. They simply don't have enough juice to occupy every corner of the world all the time all at once.

North of africa is firmly under eu heel due to refugees concenctrations camps already

North Africa is vomiting up refugees as their municipal and state governments collapse under the weight of the legacy of colonial rule. But to say their under the EU's heel. I don't think they are, in any practical sense. Business interests are abandoning the North African states. Tunisia, in particular, used to be this little corporate beach head for O&G and low-wage industry. But as the infrastructure collapses without a civil government to maintain it, business interests are retreating. Exxon is retreating from Libya. Spanish firms are fleeing Algeria for Morocco at the behest of the Madrid government after inter-state tensions resulted in an Algerian blockade of Spanish trade along their coast. Egypt is being bought out and carved up by the Saudis, while what's left of the English and American presence consolidate further around the Suez Canal.

This doesn't look like firm control at all. We're more likely to see a government out of Riyadh or Moscow or Beijing dictating trade flows south of the Mediterranean in another 50 years than for London or Brussells or even DC to hang on.