There was 1 confirmed radiation death at Fukushima and more people died from the evacuation than the accident. The exposure to radiation in the exclusion zone was very low, probably too low to cause any excess cancer in the generally elderly population there.
By 2018 more than 3700 people have died in relation to the evacuation (there's a technical criterion for this, basically death materially brought on by the worsened living conditions or issues during evacuation). IIRC there are no increased cancer rates among the population. The majority of evacuated people have not returned to their homes. The social and mental health impact of the evacuation was and is massive.
Well, there were no deaths because of the contamination in the contaminated area, because the contaminated area was evacuated. D'uh...
People weren't evacuated immediately, which is the whole point. Your dismissiveness shows that you aren't very familiar with the particulars of the accident. There was a projection at the time that there would be a short term spike in thyroid cancer among that population, which hasn't materialized. In fact radiation levels are so low in the area that the wisdom of the evacuation is very much up for debate. Of people evacuated 98% were exposed to no more than a 5 mSv/yr dose. The current ambient dose rate is 3 mSv/yr in the area which is slightly less than you'd receive visiting Finland. Flying from NY to Fukushima would expose you to a 9 mSv/yr dose.