They will tell you that it was the horrific napalm firebombing that the US performed on many cities like Tokyo where they killed like 100,000 in a day. Not nukes, just using napalm to light an entire city on fire and burn up innocent civilians, the nukes didn't make a difference and there was no difference between firebombed cities and nuked cities, that's just myth, not fact.
Low background steel is not direct proof of the existence of nuclear bombs. It is a nice red herring though, because the subject is complicated enough that false claims can be made.
There is no historical record of background radiation levels before the 1940s, so the claim radiation levels rose from nuclear tests is not easily determined. World wide background radiation levels continued to climb in the 1970s thru the 1980s when there were no significant tests being performed. As well as the fact that at the same time in the mid 20th century they shifted from the Bessemer process to the BOS process for steel manufacture and that also plays a part in the number of nucleotides in the steel and how much low background steel is being produced, primarily due to the constant recycling of steel any irradiated steel gets mixed with the old low background so they amount of low background steel fell over time. And just because steel is low background does not mean it was created prior to nuclear bomb tests, it can be made now if desired. There is not any evidence that I can find that indicates background radiation levels and traceable nucleotide levels are strongly determined by nuclear weapons tests and not just the product of fission reactors.
And Israel was a state created by the allies and UN post WWII and has the full support of the US to the tune of 30 billion or so a year, I think that strongly affects the desire to go to war with them...
sources:
https://www.researchgate.net/public...rals_from_the_northern_hemisphere_Philippines
http://www.unscear.org/docs/publications/2008/UNSCEAR_2008_Report_Vol.I.pdf
https://www.cdc.gov/nceh/radiation/fallout/feasibilitystudy/technical_vol_1_chapter_3.pdf (pg 62)
I think it was intelligent to use Nevada as the alleged test site for the nuclear bombs because the level of cosmic background radiation is highest there so measurements of radioactivity will look like they are centralized from Nevada and spread outwards, but that is conveniently the natural dispersion of background radiation regardless of nuclear bomb tests.