It's important to point out Fukushima was supposed to be decommissioned long time before it's accident. Unfortunately they had to keep it going as there was nothing to take it's place to generate the energy needed.
In particular Fukushima was in a stupid place, engineers were well aware of the the many 100s of years of experience with earthquakes in the ring of fire and calculated that a large expensive wall would be required to protect plant. The sensible place to put the plant was in a different prefecture.
Politics intruded, the plant was put in a stupid place, and the expensive wall was shrunk.
https://www.bbc.com/news/world-asia-china-58026038
They leak was minor and not a risk, but they fact that they didn't follow best practices speaks volumes.
https://oilprice.com/Latest-Energy-News/World-News/Tepco-Rem...
You cannot have a massively expensive and centralized energy source without having huge political, military (!) and economical implications. And risks of corruption and coverups.
There is no "intrusion". This is an intrinsic problem of such technology.