How does ethnocentricity cause conflict?

The ethnocentrism of the first British offended the aboriginals greatly and soon set the aboriginals against the British. On January 26th 1788, the British landed in Australia (New South Wales) and began colonizing the land. However, for many generations before, the aboriginal Australians had lived in peaceful harmony. Almost as soon as the British set their eyes upon the aboriginals, they decided the natives were inferior because of the way they didn't wear clothes and their manner. They compared the Aboriginals to their culture and in those eyes they were "improper" and even "savage" deserving nothing more than animals. The close-minded way of thinking that the British displayed is an example of ethnocentrism. It is socially unacceptable to not wear clothes in British culture, therefore, the British compared the natives to their culture's standard saying that they were inferior because they didn't follow their rules. However, it is the aboriginal's culture not to wear clothes and the British should have respected this. The British treated the aboriginals by what they thought they were; savages. From this loss of liberty and respect, the aboriginals fought back and soon there was frequent conflicts and manslaughter. All of this destruction and strife was caused by the ethnocentric judgement of the British towards the aboriginals. Had the British been more accepting and open minded toward the natives, thousands of lives may have been saved and a peaceful society set up.