The real question is whether fusion will ever be economically competitive with renewables+storage.
I think 2019 (or was it 2018?)was the first year with more renewable installed than coal plants, if you look at max charge. Good news at least.
Could you elaborate on what storage you have in mind? The only effective way we have to store large amounts of electricity right now is [pumped-storage hydroelectricity](https://en.wikipedia.org/wiki/Pumped-storage_hydroelectricit...), which is interesting but also very sensitive to the geography.
[1] https://www.kit.edu/kit/english/pi_2018_009_power-to-gas-wit...
(1) There could always be unknown-unknowns related to stability or confinement with a self-heating plasma. ITER is still a science experiment.
(2) The disruption problem hasn't be solved. There's an attitude of "it'll get solved because we need it to get solved."
You hit the nail on the head with the economics issue, though.
The costs of ITER have grown to be more than 4x as much as what was planned (and it is still in early stages so that's probably not the end of the story). I would not call that "solid".