Fusion is so dump. Were at least a couple decades away from brake even in the fusion reaction, but still people believe it will help solve the climate crisis.
Atm we put about 10 times nore energy into the whole system than we get out. And it generates nuclear waste because the wall materials absorb neutrons and get radioactive. And so many other unsolved problems... this technology is a nice research peoject, but none of us will ever see a commercial reactor in action, because it is so far away, if even possible.