why did so many chinese emigrate to the USA

As far as I am concerned，the economy of America is so strong that make many people want to live there!When you were living in this country,which has the well developed science and technology and beautiful scenery,you would feel relaxing and enjoyable.The life in the USA may be convenient and comfortable.People who were living there would have a high level cultural standing，because they had received a good education.What's more,when you arrived at America the first time,you may not be used to the life!Because they say English everywhere,and you don't say it very well!But don't worry,after a few months,you would have a good oral if you practice it as much as possible.When you solved this problem,you would have much experience at the same time! Rome wasn't built in a day.So you have to try your best to get used the life of USA.

Ps:this is my personal opinion.If it can help you,I felt so happy!But if it had disturbed something,I am so sorry!I hope it can help