That is just politics speaking. Massively subsidizing renewables and smack talking nuclear is an easy pass to a political career. But reality is immutable - nuclear energy is without competition.
https://ec.europa.eu/eurostat/statistics-explained/index.php...
Check the above. Denmark is 100% nuclear free (runs on mostly renewables but it imports), Germany i think runs on about 10% nuclear. France runs in 70% nuclear. The cost speaks for itself.