Isolated war crimes do not equal genocide. At no point did the US set out to exterminate the Vietnamese people. We actually held some of the perpetrators of My Lai accountable even. More than you can say for Russia, where war crimes are all but encouraged and the extermination of an ethnic group/nationality is an explicit goal.
But by all means, keep trying to "both sides" and "whatabout" everything.
Keep trying to engage in genocide denial because it doesn't fit your world view.
Besides, makes a lot of sense you ignore the Indonesian genocide in your post.