Because this limitless clean energy source is too expensive, even though it had 60+ years time. I hope the day fusion energy finally has its big breakthrough isn't too far away, but conventional nuclear won't solve our problems.
Wind and solar are literally fusion power with extra steps.
Running our own fusion reactors would be great but waste is not limited to fission designs. All nuclear generation has radioactive waste, it’s unavoidable.
Grid scale storage with renewables can absolutely meet our needs.
Nuclear reactors can’t adjust production rapidly and require peaker plants. I don’t have to squint to see how this is also solved by grid scale storage.