I think people who are anti-nuclear and environmentalist are wrong, but it's not an insane opinion to have. There's no fact you can point to that says nuclear is safer than renewables. I just don't see how the world is realistically going to switch to renewables. We've already seen oil companies use those as distractions from nuclear.
However, nuclear energy is the safest form of energy production we have.
By far.
And that includes Chernobyl and Fukushima.
People overestimate the danger from nuclear energy by incredible amounts.
That doesn't mean that close exposure to a running nuclear reactor won't kill you in short order. That's why we build these things with shielding. A lot of other things will kill you in short order if exposed to them: cars/trains in motion, for example.
https://www.sciencedirect.com/science/article/pii/S2211467X2...
Electricity demand is concentrated in population centers, which themselves require water and produce sewage as a byproduct. Thus it's pretty rare for a place with strong electricity demand to simultaneously have a shortage of water available for cooling. In places with limited freshwater supply, this results in plants using wastewater. Again, thermal plants of all kinds need cooling. Nuclear changes nothing relative to the status quo in this regard.