WormRabbit t1_ispz6oq wrote

It's not a finite resource. Helium is among the most common byproducts of nuclear fission (not fusion). Every nuclear reactor produces plenty of helium. In fact, the war in Ukraine had a noticeable effect on helium supply, because Ukraine has many nuclear reactors.

Consequently, it is also renewable within the Earth's crust, though I don't know whether it renews fast enough to matter.