230,000 were killed by the Banquiao hydroelectric dam disaster.
Not quite. 20,000 were killed in the immediate flooding. The rest were killed in the epidemics, famines, etc that followed.
Even if the worst nuclear accident in history happened EVERY YEAR, it would still be safer than hydroelectric.
If you're going to claim indirect deaths as you did above, then I'm going to claim indirect deaths too.
http://www.who.int/ionizing_ra...
Chernobyl didn't kill that many people directly/immediately, but it has impacted the health of hundreds of thousands, if not millions, of people. It will continue to do so, for generations. Nuclear disasters never go away.
Where X is 10-100 times larger than Y: Increasing the cancer risks for X people isn't 'better' than immediately wiping Y people off the map.