It isn’t a false dichotomy, it is simply the truth:
> https://haas.berkeley.edu/wp-content/uploads/WP304.pdf
Germany is phasing out nuclear with the result that their regulator has to ban coal plants from being shut down and start building new gas plants.
The current politics of energy production and consumption, the state-by-state compartmentalization and lack of wider cooperation hampers cleaner options (spoiled-views NIMBYism and regional politics).
Wind, solar, and hydro coupled with transcontinental UHV power transmission could solve it with much simpler technologies.
Belarus just built a single nuclear power plant that reduces their natural gas consumption in the energy sector by 25% and saves 7 million tons of CO2 annually:
> https://twitter.com/RosatomGlobal/status/1323580827377258507
Just imagine how many wind and solar farms you would need to achieve that.
And, remember, neither wind mor solar provide baseload.
Southern Belarus seems to be pretty well suited for solar power too, which might even be a little bit cheaper than wind turbines.
Nuclear is not terrible for saving CO2, but the benefits are not as dramatic as you make them seem.
That is more of a grind rather than a big bang quick reward.
Think of it like leveling up to make ones character super robust as opposed to a few high power weapons.
Risks go way down, agency improves and future people thank us rather than regret us.
Reducing emissions of energy production as fast as possible should be the first priority now, and nuclear can be helpful there. After this problem has been dealt with, then we have plenty of time to switch completely to better alternatives, like renewables.
Even a worst-case scenario like Chernobyl is still way, way less bad for nature than the consequences of climate change. Thanks to lack of humans, the area around Chernobyl is actually doing better biodiversity-wise than before the disaster.