While I agree with most of your argument, I think you forgot to talk about the part of energy production that comes from nuclear compared to that coming from coal. If say 5% of energy was produced by nuclear technology and 95% by coal (random example), nuclear energy would still be relatively more dangerous if there were 1000 people dying from it while 15000 died from coal mining/use. In this case, taking the real numbers into account doesn't change the conclusion though but should have been included for completeness sake.
For 2005 , nuclear energy is actually producing 6% of our energy while coal is responsible for 25% of it.