Asteroid mining seems like it would become a necessary endeavor once uranium becomes too expensive to extract on earth. I'd bet big that humanity can figure out profitable asteroid mining within the next 100 years!
...or, I don't know, add a wind turbine somewhere?
This blend of puerile argument had been thoroughly refuted for over 30 years. Please find another cliche to parrot.
And as we erode our base generation in favor of these intermittent sources it becomes a more serious problem.