Document D: Autobiography of a Chinese Immigrant (Modified) If this document were your…

Document D: Autobiography of a Chinese Immigrant (Modified)
If this document were your ONLY piece of evidence, how would you answer the question: ‘Why did Americans pass the 1882 Chinese Exclusion Act?’
The treatment of the Chinese in this country is all wrong and mean. . .
There is no reason for the prejudice against the Chinese. The cheap labor cry was always a falsehood. Their labor was never cheap, and is not cheap now. It has always commanded the highest market price. But the trouble is that the Chinese are such excellent and faithful workers that bosses will have no others when they can get them. If you look at men working on the street you will find a supervisor for every four or five of them. That watching is not necessary for Chinese. They work as well when left to themselves as they do when some one is looking at them.
It was the jealousy of laboring men of other nationalities — especially the Irish—that raised the outcry against the Chinese. No one would hire an Irishman, German, Englishman or Italian when he could get a Chinese, because our countrymen are so much more honest, industrious, steady, sober and painstaking. Chinese were persecuted, not for their vices [sins], but for their virtues [good qualities].
There are few Chinamen in jails and none in the poor houses. There are no Chinese tramps or drunkards. Many Chinese here have become sincere Christians, in spite of the persecution which they have to endure from their heathen countrymen. More than half the Chinese in this country would become citizens if allowed to do so, and would be patriotic Americans. But how can they make this country their home as matters now are! They are not allowed to bring wives here from China, and if they marry American women there is a great outcry.
Under the circumstances, how can I call this my home, and how can any one blame me if I take my money and go back to my village in China?
Source: The passage above is from Lee Chew, “The Biography of a Chinaman,” Independent, 15 (19 February 1903), 417-423.
Based on this document, why did many white Americans support the Chinese Exclusion Act?