[jpgvm]

You could have made the same argument for investing in solar a few decades ago.

Spending money on fusion research will unlock humanities next energy supply for when/where solar isn't viable.

Fusion power has been hampered by the way it's been approached )massive slow moving projects) but is inevitably going to come to fruition given enough time and money and when it does it will likely displace most other energy sources.

[ncmncm]

I will go on record here:

There will never be so much as one single, solitary erg of competitive commercial energy production from any Tokamak plant, ever. Every cent spent on Tokamak is stolen from more viable energy research--which might reasonably even include some non-Tokamak, aneutronic fusion, after solar, wind, and geo capacity are fully built out. Thus, each person-day of work on Tokamak takes our species a day farther away from any desirable goal.