Ken Burn's recent series on Vietnam is very well made and speaks with participants and stakeholders from across the ideological spectrum. Highly recommended: https://www.netflix.com/title/70202579
I know it's a popular series, and I haven't gotten my dad's response to it because he hasn't watched it, but many war veterans and South Vietnamese military members say it's not a very balanced documentary.
You have a lot of informed opinions because of course you were close to the war and your family was. I hope to see you continue to share your ideas, even if you are suffering some criticism.
Oh come on. Look at the series. You can say what you want but it is extremely biased. It takes about 30 seconds for it to call the war a mistake, and it doesn't get better from there.