Yep.
When we finally took off the gloves and used B-52’s to bomb Hanoi, we lost a few (16 I think) but it brought them back to the table.
If not for the craven Democrats gutlessness and affinity for Communists in the wake of that 1973 treaty, we might still have a South Vietnam today, much like South Korea.
But they refused to hold up our end of the treaty.
You’re exactly right.