"1. The total death impact from Chernobyl is roughly 4k people"
Again, I'm not comparing the immediate death tool. Taking that approach is penny wise, pound foolish. I'm pointing out that while a single limited nuclear catastrophe can occur with limited repercussions, a continuous series of such incidents creates a feedback loop where the secondary impact is far worse than the initial impact.
"2. The exclusion zone is 1k km, 1 a year would add up to 1M 'off limits', most of it indistinguishable from a natural park"
A "natural park"? Really? Have you seen what the controlled area looks like? I'll give you a hint, all of the dead wood, plant matter, animal life, etc... doesn't biodegrade. It just stays there, dead, dehydrated. No rot. no mold. Because the levels of radiation through out the area, while not immediately harmful to humans, is strong enough to kill off bacteria and fungi. There is nothing natural about Chernobyl.
"3. 1 Chernobyl/year is an absolute worst case scenario."
I whole heartedly disagree. A Chernobyl in Nebraska is a vastly worse case scenario.
"4. Estimates range from 4k to 93k deaths from the accident and resulting radiation"
Again, this is only >Human deaths. If you look at the full ecological impact that number is dramatically higher. As it is for coal and oil as well.
If you put your blinders on and look at only the direct and immediate impact on humans, yeah, nuclear looks really good. Take a step back an look at the nuclear impact on regional ecologies, and it doesn't look quite so rosy.
That said, I'm not opposed to nuclear power. I'm very interested in thorium-salt reactors. They offer much of the benefits of traditional nuclear reactors with a fraction of the risk. Even sticking with traditional uranium reactor, we need to dramatically improve our technology. These 60+ year old reactors have to be taken offline and replaced with modern technology. Hell, we're still using fuel rods in most of the US nuclear plants. Pebble beds have been in operation since the 1980's and we still haven't made the jump. Even better options are available today.
-Rick