Not a single country looked at nuclear weapons otl with anything more than curiosity before 1940 otl even though the knowledge existed since 1926. It was too costly and at the time seemed like an overhyped bomb. No country until forced into a new devastating war is going to invest in a hypothetical bomb. So really I don't get these arguments at all. The only country to look at the nuclear projects before 1940 was britain and that too to build nuclear energy not a nuclear bomb. Some in parliament believed that nuclear energy could provide more employment and relief some of the great depression recession. That's it.
one correction the possibility of nuclear fission from a theoretical standpoint had been floating around with discussions and testing of nuclear reaction however, that is not really enough of a knowledge base you could really discuss something like a bomb that you need fission and the discovery of nuclear fission itself was only discovered in 1938 funny enough within the Kaiser Wilhelm society. the reason why the its important is because from that time frame it took 2 before Britain started really looking into how to make a bomb in 1940 with it that's surprisingly quick for brand spanking new technology. so the actual scientific knowledge on which nuclear weapons are based around fission didn't exist till pretty much the war was already on them a year later in 1939, so the discussion about cost and willingness i believe isn't a totally fair argument considering the timescale. to Steelman your point i would point out the incredibly short timespan of which these countries have to address this breakthrough and actually utilise this in such programs assuming that the war and scientific breakthroughs happen in roughly similar timeframes which isn't guaranteed. i think the whole argument between who gets it first fundamentally comes down to what you value more the resources one can dump into the project typically in the form of production or the academic background needed to kick start it because you need both. you may know how to make it but that doesn't mean you can build it, you may be able to build it but still in to know how to actually make the damn thing.
so assuming the tech is discovered on the same timescale and Kaiser's setup results in ww2 around the same time as otl then its important. hell more so if not on our timescale because ultimately it is factors into its eventual development why because you can point out the lack of will but that is only the case if no war when one of the countries are in it then the will, will come. why? because nearly every major player in otl ww2 recognised what potential the bomb had everyone pretty much which leaves it down to capability. so unless the scenario Kaiser has planed is the us doesn't enter then i don't see your point because i don't think many even have suggested that they make it pre 1940 but rather just how quickly once development starts with the war at which case well you have seen both sides of the debate.
but too explain my side for anyone who did miss it, to sum it up. most of the time developing a nuke is research and development not production, production does however account for most of the funding 90% in America's case. to illustrate my point it still took 2 years of development in the Manhattan project before production could even be conceived and that's working off the back of a lot of development which the British had done since Maud approved of its feasibility in 1940. and both of those nations where working off the back of knowledge of the science community fleeing Germany all of which will not happen in a world with a victorious Kaiser Reich. a community that is a lot better treated and funded with the Kaiser in play in Germany. America's production ability would not mean anything if they can't cook up a working design in time.
anyway i hope this all explained why i think these arguments are in play. its ultimately under the assumption that America will join a war but that's not guaranteed and if they don't then I would agree with you.
i def realised that, and that congo ore it also the richest on the planet
may i ask for clarification because too my understanding if you mean quantity of ore then that isn't the Congo but Australia if you mean quality then Canada. though if you mean at the time then i retract my statement