• Lumping together fission (the kind we use today to produce energy) and fusion (a kind we have never made a power plant of but have high hopes in the future) is questionable.

    You source says in 2022, fission + fusion totaled 4.94 billion in R&D funding. This source says that in 2022, increases in fusion investment raised of more than 2.8 billions. I am willing to bet that the huge majority of these 4.9B of R&D investments are in fusion.