It's not. He-3 is supposed to be maybe one day used in fusion power, but we're talking about tons of this stuff. Not only scale is off, also He-3 burning requires much higher temperature than D-T fusion, and this is just around in next 20 years pinky promise

People who think that it's a big deal also take Ray Kurzweil seriously, it's scifi noise

In practical terms, when DHS wanted to get He-3 neutron sensors, they bought out entire global supply for multiple years, for an application where only grams are needed and it's not used up. It's made from decay of tritium currently and it'd be less energy intensive to make it the usual way

at minimum brits have source code. couple of eu countries make parts for it as well

there's a couple of big failures in american defense industry (like shipbuilding) but F35 is not one of them. the alleged killswitch is not likely a thing because first, it could be used by the most probable adversary, and they already shown capability in EW; and second, it's not necessary because it requires constant stream of spare parts and maintenance. as if it's worth it, ask any remaining iranian radar operator for firsthand opinion

some countries switched to euro made jets anyway, but these aren't likely to be doing the job that F35 is cut to do anyway (SEAD)

it's not listed because this is not what is happening

italy for example put bridge construction in that military budget (as critical infrastructure)

Horseshit. USAF doesn't need AIM-7 Sparrow or MIM-23 Hawk missiles, these aren't even in service anymore. But Ukraine can use these (Hawk missiles can be used on Buk launchers)

that was known almost decade before that https://en.wikipedia.org/wiki/Nth_Country_Experiment

it also helps if your air defense network doesn't collapse immediately because it turns out that in order to guard these nukes you need also regular capable conventional military

Yeah, who else. Nuking Dresden at that point would be useless

either that, or nukes would be used first in korean war instead. imo it's a good thing that nukes were first used against the most cartoonishly evil fascist state imaginable at that point

both farmers and rifles are in entirely different part of continent

Ukrainian AA can't reach these bombers because these were used as launching platforms for long range missiles over Caspian, relocating SAM sites does nothing. Also it's likely that what was hit were good planes, some of which were even fitted with Kh-101 cruise missiles at the time of attack, and part of what is left are planes under maintenance. It could be so that only third or less of long range bombers are usable now, which would most obviously increase wear on them in immediate future