The “two” colonialisms blended quite smoothly, both run by the same countries against the same countries. The only shift was of influence from the aristocracy losing place to influence from the capitalists. You will find both types operating, in varying degrees, from the earliest days to today.

As to Singapore, it had long ceased to have land as its major role. It was the British power base that protected British capitalism in the Far East, just as The Phillipines, of much later origin, protected US capitalism.

But none of that really matters. The important point is that the nature of warfare means we can no longer exercise that power as we used to.

Colonialism’s fate was actually sealed with the development of capitalism in the 18th century, displacing land based fuedalism as the dominant economic order. Singapore was merely the death rattle in a long wasting decline of land based colonialism, in favour of resource and labour based Modern Imperialism which gained dominance in earnest at the turn of the 20th century.