What is the theme of colonialism in Robinson Crusoe ?

Crusoe's views of the native population represent the traditional colonionist ideas: they are saveges. Take for example Chapter 16 qhere Crusoe plans an attack on "savages" and "cannibals." Having rescued their prisoners we see Crusoe's real opinions on exploitation going hand in hand with colonization,

My island was now peopled, and I thought myself very rich in subjects; and it was a merry reflection, which I frequently made, how like a king I looked. First of all, the whole country was my own property, so that I had an undoubted right of dominion. Secondly, my people were perfectly subjected—I was absolutely lord and lawgiver—they all owed their lives to me, and were ready to lay down their lives, if there had been occasion for it, for me. It was remarkable, too, I had but three subjects, and they were of three different religions—my man Friday was a Protestant, his father was a Pagan and a cannibal, and the Spaniard was a Papist. However, I allowed liberty of conscience throughout my dominions. But this is by the way.

Crusoe feels that by right of his ethnicity, the island is his "own property," and is his by "right."