If you are a Vietnamese parent who is still holding on to the outdated traditional values, I advise you to be open-minded with your gay children.
Being gay is not a sickness. You can’t straightened him up. You can’t make him love another female. How would you feel if your mother forces you to love another woman? You can’t do that, right? Being gay is not a choice. It is who he is. Rather than opposing him, why don’t you embrace him? He needs your love and support.
Being gay is not abnormal. He doesn’t need any medication. He needs your acceptance. He is still your son. Don’t push him away.