The Vietnamese American Prisoners of war ask the question

Dear Professor Sir, By the way would like to share with the professor You should ask the question: who sent us to the communist jails? Why haven't you directly struggled for justice like your imprisoned situation during the Vietnam War? You should remember during the Vietnam War we Southern officers had paid the income tax to the Government of the United States of America through the bilateral treaty between the Government of the United States of America and the Government of the Republic of Vietnam signed at Saigon on March 31, 1967, and May 3, 1967. Entered into force on May 3, 1967. 18 UST 546; TIAS 6262;685 UNTS 207 - in force as of January 1, 2020. (to see page 329-Taxation evidence of the book Justice for Vietnam-ISBN 987-1-6624-6387-7 by the Author Bright Quang.) This is the right interest of benefits for the Vietnamese American prisoners of war. Why haven't we struggled for justice with our American motherland, but we have been doing it for the wrong title with our heads kept down without having a little light?