So helium is a limited resource. Okay gotcha. So why not take two hydrogen atoms. Take their protons and neutrons. And just fucking start squeezing them together until you get helium?
And I don’t mean in the same way you get H2. Those are still separate from each other.
Just a tiny bit of context: we are getting fusion reactors to work in fifty years since 1950.
Powered flight was fifty years away from about the ninth century onward. Until 1903. After that it was trivial.
Because of funding cuts, so yeah bring the cash back and it will probably be even before 50 years.