The BIGGEST problem with clean energy

I think the biggest problem facing a zero emission future is getting people on board with nuclear power. I'm 99% sure that not embracing it will lead to a global climate disaster unlike humans have never seen before. For 40 years we've tried to find an alternative and haven't been able to. Look at Fukushima. It only happened because they couldn't build a new nuclear plant and had no alternative besides constantly leaving a whole lot of people without power all the time.
Edit: Do we need nuclear everywhere? no. Is it required in a ton of places? Yes.
Edit 2: Long story short: I think we need to use all technologies that are zero emission.