I guess you've got to be flexible depending on circumstances. I mean NATO only really got going after Europe elected Hitler and now we have another iffy electoral result to work with.
I think they might have been helped along a little by things like being occupied, becoming economically and militarily reliant on their occupiers and watching all of their leaders face judgement at the Nuremberg Trials.
Things haven't gotten quite so extreme in the US yet but it feels reductive to suggest that they can just have a flip flop election and that will show they "realised the error of their ways" like Germany did post WW2.
I think culturally most of the US is still pro NATO, it's just Trump and friends who are anti. I guess if Vance succeeds him things will be similar but if the dems win they won't.
I'm kind of interested if Russia could become normal if the current regime collapses.