Indeed, but it might be
many decades - once this lesson is first learned, it will take a long time to unlearn because it tends to become self-reinforcing.
To give an illustration of how long institutional memory over things like this can be:
As of when I went to primary school in Norway in the 1980's, we were still taught at length about the British blockade of Norway during the Napoleonic wars due to Denmark-Norway's entry into the war on Napoleons side and its impact on Norway (an enduring memory for many Norwegian school-children is having to learn the Norwegian epic poem "Terje Vigen" about a man evading the blockade).
Norwegian agricultural policy to this day has had a costly cross-party support for subsidies intended to provide at least a minimum of food idependence as a consequence of learning the hard way first during the Napoleonic wars with a reinforcement (though less serious) during WW2 of how important it can be.
A large part of the Norwegian negotiations for EEA entry, and Norways rejection of EU membership was centered around agricultural policy in part because of this history.
The importance of regional development and keeping agriculture alive even in regions that are really not suited to it is "baked in" to Norwegian politics in part because the subsidies means that on top of those who are about the food idependence a lot of people are financially benefiting from the continuation of those policies, or have lived shaped by it (e.g. local communities that would likely not exist if the farms had not been financially viable thanks to subsidies), so structures have been created around it that have a life of their own.
Conversely, a lot of support for the US in Europe rests on institutional memory of the Marshall Plan, with most of the generations with first hand experience of the impact now dead.
Create a replacement memory of the US becoming a hostile force, and that can easily embed itself for the same 3+ generations after the situation itself has been resolved.