What is the ancestry of most Macau people?

Most of them are Chinese, and some are of mixed Chinese and Portuguese descent. Although it has been colonized by Portugal for hundreds of years, when it returned to the motherland, unlike Hong Kong, many people did not sign the right to reside in the United Kingdom, but there were very few pure Portuguese people. Besides, Macau does not grant nationality based on blood. In the 1980s, a large number of illegal immigrants smuggled into Macau. In order to solve this problem, the Portuguese and Macao governments launched Operation Dragon, so there were also many from Southeast Asia.