Personally I have no issue with nuclear power of itself.
The waste bi product on the other hand I am very concerned about. I don't think our species has demonstrated a consistent enough approach to minimising human error and to monitoring, particularly over the lengthy periods of time we are talking about.
Now upon reflection and after some research, I acknowledge that research into the production of nuclear power has come a long way. Arguably, reactors are in fact safer today than at any other time, of course, there is no indication to improvements to minimising human error (maybe we are the problem

). It is also arguable that nuclear power produces less overall waste, however, the downside is, that waste is demonstrably more dangerous by a significant degree and that waste is potent for decades (at the most conservative end of things), some nuclear waste has half life measure in hundreds of years and some in thousands of years - will we really remember to monitor this for generations?
So, I see some big risks.
I am curious about what seems to be an all or nothing kind of argument, meanwhile, both sides of the all or nothing teams claim, at some level at least, an interest in discovery, new technology and/or knowledge.
I wonder if renewable energy can't be more broadly researched.
The best reason to use Liquid fluoride thorium reactors is that they can actually use, or rather reuse, the by-products (nuclear waste) from the more 'traditional' solid fuel reactors.