How can you even compare the Ottomans with the British and French? The Ottoman's didn't massacre. Their strength was in their tolerance. The British and French massacred. They had no value for human life. Their values revolve around them. Around white men. It always has, and still to this day there are remnants of that. The British were the people who invented concentration camps, to deal with the people they colonized. The Nazis were inspired by them. As for, the French, well, just google image search "French colonization Algeria" and see for yourself.
As /u/datman216 said, they build things for their own benefit. It's not unusual for colonizers to build and "develop" the lands and societies they colonize, but they do it for themselves. Colonizers treat colonized land like cheap and vast resources, including the labour. Any benefit the colonized get out of it is incidental.
Even the very base of the modern Arab states is a product of colonialism. I will give you Kuwait as an example, since I'm from Kuwait. Kuwait was not strictly colonized, because it was a "protectorate" of the British Empire. But in order to get independence, the rulers of Kuwait had to appease the British and create a "proper" state with all its institutions and whatnot. Before then, there was hardly anything resembling a "modern state". We had no police institution, no army, etc. Those were established in Kuwait while the British were "protecting" it (HA!), literally and directly based on the British models. That's how we got the State of Kuwait. Kuwait existed in one form or another since the 17th century. It was the Sheikhdom of Kuwait. But today we celebrate our national day going back to 1961, when the State of Kuwait was established. It's as if we never even existed before then, as if nothing before then counts.
People always ask why Arab states always fail. Why we're so bad at democracy. Well, here's the answer: Because they were imposed on us. The kind of democracy that is the norm today, the modern state that is the norm today, they're Western impositions. They have no basis in Arab culture.
I'm not saying we should go back to the "good ol' days," but maybe if we were allowed to trade and mutually exchange ideas about politics and the economy, etc., if we were allowed to choose rather than have things forced down our throats—how to run our countries and our economies—maybe then we'd actually be somewhere good, and not stuck in a box that's clearly not the right fit for us.