Many of our Vietnamese and Laotian allies paid a dear price for helping us in SE Asia. The fortunate few made it to the U.S. They have seen Communism up close and personal and will never sign on to that here. They are still good allies of "We the People".
I have liked the SE Asian refugees whom I have known over the years. The communists exacted terrible retribution on our former allies. Many were killed outright, while others were gradually worked and staved to death in prison camps. The current communist regime in Viet Nam is corrupt and brutal but finds itself increasingly aligned with the US against China.