Except that in reality, the conquering of North Africa involved decades of violent suppression.
http://www.enotes.com/genocide-encyclopedia/algeria
Algeria is probably the most egregious example. Whereas in Morocco the French instituted a pretty much Apartheid system, which was need to keep the Arabs in their place and off the good land for the French settlers!
Oh and those great schools where they were forced to learn French and French culture, and the superiority of their white overlords so that they could be easier to control. But at least they were introduced to "civilization."
The trouble with this black and white presentation is that it overlooks the fact that the atrocities were usually committed by Algerian conscripts. Colonies cost as well as make money and the French government refused to increase expenditure for an increase to the relatively few troops sent overseas. Therefore, natives were conscripted in large numbers.
The French Army recruited extensively from the Berber and Arab peoples of Algeria throughout the period of French rule (1830–1962). Most were employed as infantry (Tirailleurs) and cavalry (Spahis). Algerian troops saw extensive service in the Crimean War, Mexico, the Franco-Prussian War, various colonial campaigns in Africa, Tonkin and Syria, both World Wars, and the First Indochina War.
Moreover, they didn't only kill at the behest of the French; here's what happened after the French had left:
Violence in Independent Algeria
After 132 years of colonial subjugation and a bloody seven-year war for independence, Algeria went through a period of relative peace and economic development that lasted almost three decades. However, the country entered into another troubled era in the 1990s. As one of the nationalist leaders, Larbi Ben M'Hidi was quoted as saying to his compatriots in the 1950s: "the easiest part was to regain independence and the toughest one comes after that." The economic and political systems that were established in independent Algeria failed. This led in the early 1990s to a social rebellion headed by Islamist groups, which, after having been denied a legitimate electoral victory in 1991, opted for armed rebellion against the state. However, the war they waged for a decade extended also to the civilian population and foreigners. Between 1992 and 2002, over 150,000 people were killed, entire villages were abandoned, and the economic infrastructure was badly damaged. While most of the violence is attributed to the Islamists, the government also committed repression and reprisals and is responsible for the disappearance of thousands of people. Many also accuse the Algerian security service of using French-style torture and of the summary execution of suspected Islamist rebels or their supporters. Because there has not been a full and independent inquiry of the massacres and other violations committed during this internal war, the whole truth about the ongoing tragedy in Algeria remains unknown.
In both places the indigenous population is almost entirely dead, and those that are left have been displaced. The remainder are ethnically and culturally French, or recent arrivals.
As I said, I have no idea of the truth of this assertion.
French Indochina was nearly as bad as Africa. Once again harsh violent military pacification was the norm. They also had a nice system of forced labour and a switch to a plantation economy so that they could provide valuable trade commodities for France. The money gained from these businesses of course all went into the pockets of the French.
Much of the money was, in all probability, spent on building the infrastructure to maintain French control of the colony. Either way, it proved of great benefit to the Vietnamese following the French occupation.
Then they are also pretty much responsible for the political instability that resulted in the Vietnam war, no matter what the Americans later went on to do, the French already had several decades of killing the locals in their own right.
If you mean killing insurgents, then that's par for the course in all imperial regimes, including that of the UK, but it's pretty obvious that the amount of Vietnamese casualties resulting from US involvement far outweighs those inflicted under French rule.
And I'm sure Catholic collaborators with the French regime really didn't want them to leave.
Catholicism arrived in Vietnam during the 17th century, long before the French occupied the country.
West Africa was also operated under a forced labour system, most plantations owned by the French, and the large European settler population. And there was once again a use of military pacification of local populations, which involved general murder and slaughter of indigenous people who simply didn't want to be ruled by the French. Also, Burkino Faso's economy was run into the ground by the French until the point where it was partitioned off from the Ivory Coast, to make the Ivory Coast look better.
See my comment re insurgents above.
The French are particularly egregious offenders though.