The average nuclear reactor is over 40 years old(!) and well past due for replacement. So the cost is skewed by unrealistic maintenance demand on reactors that are 3 generations old because we can't politically replace them with anything other than a Natural Gas plant.
Meanwhile, renewables enjoy fast-tracking and subsidies. But keep in mind renewables currently only benefit places that are either windy or sunny. There are going to be diminishing returns as they fill up our power diet. We are still going to need power supplies that can keep New York powered in the winter. Or power that can be turned on/off to meet seasonal demand. So unless we want to keep natural gas and coal plants around indefinitely, we are going to need some amount of nuclear power in the mix.
After the Ukraine invasion, I think it's also worth considering future political instability in reactor permitting and design. I believe the molten salt reactors negate a lot of the problems we've had to consider with the Zaporozhye nuclear plant being in a war zone, but I'm not sure it comes out to something much better than solar and wind.
The micro reactors sound interesting though.
Meanwhile, the Nordics and France that when all-in on nuclear are enjoying relative energy independence.
That's 99.9% of Germany's anti-nuclear movement. The "it's just not economical" is a super recent addition (last 3 years, I'd say) to the public debate, and it feels very much tacked on. If anyone discovered a method to bring down cost, most of those who are against nuclear energy wouldn't change their mind, because that's not an actual concern to them.
Meanwhile, we are just supposed to take for granted that unforeseen technology will make energy storage and transport cheaper.