In other words, not everyone who lives in the US is taking stupid pills.
No.
Merely there has been no Space Race with the Soviet Union, no profiting from the former Nazi scientists commanded by Werner Von Braun, and certainly not even REMOTELY the same injection of Billions worth of money to the Aeronautical investigation and development than in OTL.
I do not deny that those figures do possess the potential genius.
What I call to question is that the American Government wasted time in isolationism or other wrong policies in this timeline from the end of WWI to a few years AFTER WWII, and as such, they are behind in several fields, and their priorities have been skewed by a world view that its nearly alien to the rest of the world.
While many complain about the seemingly unrealistic behind position of the US here compared to the Germans, most seem to forget that while they have inventive figures in their history, they also progressed immensely from both circumstances that left them in the position of technological and industrial advantage, and... From the bounty of technology developed by other countries and individuals.......
This US didn't got here for a mint the best of the British and French research and licenses in exchange for producing stuff for them in WWII.
Neither they got stuff retro-enginneered from German technology or later produced by the experts from Nazi Germany in OTL.
Here the American Government and Companies are in a race to shorten the bridge gap between the German Corporations and their subsidiaries in the other Continents , something that has become a form of "Colonialism" that is actually slowly hurting the American Economy, as former markets between the end of WWII and the current date, have started to actually be PRODUCERS of stuff that the US sold to them before.
The Germans fell in account that no matter how much they expanded their production capabilities, they COULDN'T outproduce the US by themselves. Langism went to deal with the issue from another angle. Namely to profit from BUILDING UP the capabilities of other nations, to become capable of producing Licensed German Industry designs....the Main Corporations gain a percentage of the Profit and have influence in the branches, the Technical and industrial capabilities of those Third World Nations receive a massive build up, alongside the uplifting of the quality of life and spending , revenues for those governments, increasing of the education...
Its not Germany's Production against the US. In that aspect, its the combined production of Germany, AND the production of the Franchises in South Africa, AND Mexico, AND Argentina, AND in Vietnam, AND in Korea, AND wherever else the Germans have done deals to do this, with little loss of quality, AND a great percentage of saving in price when you can buy a German-Certified Product of near same Quality than the one built in Germany, at a similar or LOWER price.
The Americans, are basically being beaten by Outsourcing, with the Germans having Influence and gaining extensive influence and profits , also gaining favourable conditions world wide to the hour of new investments and developments in such nations. Moreover, the Americans are having to deal with the fact that outside a few nations, the NEW Status Quo its the one that the Germans imposed....meaning that their style of "Capitalism" its liable to get them the doors closed in the nose, where the other European nations are EMULATING the German Model of Economics....
Having individuals with the potential, also needs having the tools and technologies..... As those technologies advance and the timeline also advances, the cost of producing said technology also goes up exponentially in some cases if you're lacking the anterior technology baseline or the licensing in a free market world