Personally I'm open to nuclear power, where it makes sense - and there are certainly sites where it makes the most sense. However I disagree that it's always the best alternative, and especially that any other option is "suicide".
For one, nuclear isn't as cheap as you seem to think. According to the EIA, (onshore) wind and solar PV both have significantly lower LCOE than nuclear, at $58.5 and $74.2 per MWh, vs $99.7 for nuclear. That's after accounting for their lower capacity factors, and before any tax credits. Wind and solar are cheaper to build, generally cheaper to maintain, and have zero ongoing fuel costs.
And while I agree that modern nuclear has a very low chance of dangerous failure, it's still non-zero, and you have to multiply that chance by the economic costs of consequences, which can be very high. Failure costs aren't factored in to the above numbers, but they can't be dismissed either. Despite that, I think nuclear should still be considered, particularly for more northern sites where solar is less effective and available wind may not be enough.
I'm guessing your objection to solar & wind is the "baseload" concern, where low capacity factors require alternate sources. This isn't a new issue for the energy industry (nothing has a 100% capacity factor), and is traditionally solved by distributing the load over multiple plants. A number of studies show that reliable power is certainly feasible with renewables too. For example, with widely-distributed wind farms, local variations can be spread out over the larger grid, and excess solar can be stored with pumped hydro (where available) or any of a number of commercially-available grid storage technologies, including reflow batteries (which can be easily scaled to almost any desired storage capacity). During the transition (which would likely take decades), existing gas turbines can help cover any shortfalls. I also note that geothermal plants are particularly interesting here, as not only do they have a capacity factor even better than nuclear's, they also have the cheapest LCOE of all.