it seems like differences in worldview stem from a disregard of the universal ethical principle
and it makes sense then that common ground cannot be found when opposing viewpoints are rooted in incompatible principles.
That's a very normative and idealist worldview, that itself fails to regard other, opposing principles and thus doesn't live up to the standards it pretends to set. In reality, differences in worldview often have material reasons rather than ideological ones. For example all the brilliant dialectics of Hegel ultimately amount to him embracing the Prussian monarchy as the ultimate end result of history. The final goal of all human morality. It just so happens, that he was a privileged intellectual, comfortably living under Prussian rule.
No, it's never been able to compete on the market in terms of cost per kWh without massive amounts of government money. Just try building a nuclear power plant. Without this funding, no bank would give you credit, no insurance would insure you or any bank stupid enough to finance you. And alternatives are only getting cheaper, while trying to deal with the enormous risks continues to highten the costs of nuclear.
And that's not even talking about the enormous hidden costs off loaded on exploited people who have to mine the uranium. Or on future generations who are forced to take responsibility for nuclear waste in the only realistic way: actively guarding ever more and ever larger high security buildings full of poison (yes, the toxicity is just as problematic as the radioactivity) and hoping really hard against probability, that no natural or human made disaster will ever strike in basically all eternity.