Teejay
Gone Fishin'
It is rather less effective to remove the leadership of groups who ar snot loyal to you if you also send tens or hundreds of thousands of their countrymen with them. I feel we need to look over share-croppin and serfdom and see if we can consider that as light slavery for the question of this. It is rather easier to do the stuff with slavery in Sub-Saharan African due to them having different property laws, different economies, and how it was often prisoners and captives brought in from far, far away away that were being traded. Going to be impossible to find collaborators for the French here. On that note, Egypt and Morocco will not give a single inch of influence if they think the French are trying to come after them. I see the Egyptians mvoign much closer to the ottomans, while Morocco might try to get in bed with the British. If the French want to seem better in the eyes of Europeans (not saying this is makes any of this good, but they might spin it with propaganda) but they might try claiming they are converting hundreds of thousands of people or trading the Algerians with other states to get Christian hostages. Not going to work of course and just going to inflame tensions but- huh. I just thought of something. Maybe a populatoin exchange with the Ottomans?
Though I doubt it would be taken. The Ottomans liked the wealth they got from all the Christian subjects in the Balkans while the French might not be thrilled with a bunch of Greek Orthodoxs being brought into Algeria after they tried opening it for themselves. I expect in scenarios like this the Ottomans would pack up everyone remotely Catholic in the Levant and ship them over. Not that the Christians there were exactly thrilled about Europeans. I recall reading in a book series called Politicslly Incorrect History (it showed some good examples, but omitted the full story) about how when Saladin conquered Jerusalem he enslaved those who couldn't pay ransom. What it leave says out was how the bishops and noblemen were ransacking the treasury and seizing every relic or speck of gold in Churches, and refusing to pay for the local Christians or the poor civilians or crusaders. I think there maaaay still have been some long going resentment of the Crusades, where every group and religion was at each other's throats, and non single Groupon a story unified.
Anyway I often thought of the French conquest and subsequent colonisation of Algeria is something that the British would certainly not do. Because all the British would be content in subduing the Barbary states and turning them into protectorates or at the most into area directly ruled by the British. However the British would not attempt large scale colonisation of Algeria although.