This is a mischaracterization of what happened. The economics got bad because of regulatory pressures, and regulatory pressures increased because of anti-nuclear sentiment, and …
… Anti-nuclear sentiment is directly downstream from organized campaigns by organizations like Greenpeace, yes, but also left-aligned political parties that, for reasons I still don’t fully understand, decided make killing nuclear their entire reason for existing.
Plain false. The "economics" never got bad. They were always bad to begin with, hidden under layers of government subsidies.
The fossil fuel industry quietly funneled money to these groups to discredit nuclear which competes with gas/coal for base load. Solar/wind only partially compete because at times they produce nothing so the grid still needs base load (usually "natural" gas these days).
Thanks for all the extra greenhouse gases, Greenpeace!