Fukushima's obvious issue was known before it before it became a mistake. We aren't discussing unknowns.
> Nothing is black or white, but Fukushima happened in an advanced country and to me this shows it can happen anywhere.
Right; fortunately we have reactor designs now that are intrinsically failsafe (ie the failsafes rely on physical laws, and thus can't fail). Why don't we use them? Funding/politics. As you said, nothing is black and white.
> Doesn't mean we should panic and shut down all plants today, but I think in the long term we should try to transition to other more controllable forms of energy.
What other forms of energy? Chemical energy is limited and is just as hard to make safe (coal/oil is really bad (https://en.wikipedia.org/wiki/Environmental_impact_of_the_co...), which are arguably just as bad if not worse than nuclear power). Wind/solar is limited without storage; even with storage it's still limited.