Really? I think the British Empire was a high point in world history (for both the British and their colonies). So I don't see how your point is supported.
That said, I think a constitutional republic is the right solution, not democracy.
hahahaha - for who ? Look how many conflicts today have their roots in the decisions and actions of the British Empire.
Seriously, yes, there were some side benefits eventually for the colonies but the cost was great and continues in many parts of the world. I resent that ignorant statement.
Specifically, how they broke things up when they left. In general, wherever they left, things fell apart somewhat. I have talked to several people who believe their country took a turn for the worse when the British left.
Are the Aborigines or US native indians actually better off?
For me the benefits of British rule are very mixed and to argue that the conquered are better off ignores the costs borne in the past. Additionally, we cannot say how things might have been if people had been allowed to develop naturally and trade under normal circumstances.