Um, no. No they don't, and many are only learning about it now. At the time they weren't paying attention because they'd stomped their feet, threw a tantrum, and the spoiled brats got their way.
That's all that mattered.
Nah, I think most of them were stoned or tripping back then. They really didn't care about the people, it was about hating the Republicans even then.
****
I will never forget, or forgive, a schoolmate of mine who, when asked about the millions killed by the Pol Pot regime, said that she had not known about it. She was a Catholic Charities social worker, then a Baltimore City council member, then a US Congressman, a total sycophant of Teddy Kennedy, and if he said there were no negative results to cutting off defense funds for the South Vietnamese, then that was the story she was going to stick with!
Now she is a US Senator, and I bet she still denies that we bear any responsibility for the Vietnamese boatpeople or the killing fields in Cambodia and Laos.
;-)