No, nobody will admit to that or change their minds, the end of nuclear in Germany will be celebrated as a success for the environment.
No, changing the opinion now would not matter. Germany killed its nuclear industry decades ago. Being right about this would have mattered in the 80s and 90s. You don't get the CO2 or methane that has been emitted back into the ground or the people that died out of the ground by being right in 2022.
A German produces almost twice as much CO2 as a Frenchmen. https://www.worldometers.info/co2-emissions/co2-emissions-pe...