The word "Chinaman" is offensive

In response to APAs who were puzzled over why Chinaxxx was a bad term, S. B. Woo, President of 80-20 points out:

The English language is defined by its dictionaries, not by individuals. The most authoritative dictionary in English is Webster. Webster (10th edition) defines N-gger: a black person - usu. taken to be offensive; Chinaman: Chinese - often taken to be offensive. The term "Chinaxxx" has a long & sad history in this country. Chinaman didn't have a bad connotation a long time ago. It was used just like Englishman and Frenchman. However, in 1853, conviction of killers for the murder of Ling Sing was OVERturned on the grounds that testimony from the "INFERIOR CASTE OF PEOPLE WHO WERE NON-CITIZENS, " should be thrown out. It meant that Chinese testimony against the whites was not admissible. Once that legal precedent was set, the whites learnt that they could terrorize Chinese without fear of legal consequences. Numerous such incidents happened. Thereafter, the phrase "not a Chinaxxx's chance" was coined, meaning "not much of a chance." The word "Chinaxxx" became an offensive term to Chinese Americans and probably to all Chinese.