Lets rephrase because the argument you're trying to make is good, just exaggerated and incomplete.
Nuclear has a small chance of something going bad but when it goes wrong it's big and localized. We'll bound the cost as a bit higher than Fukushima (which includes a tsunami) with $200bn. But if we look at the median cost of accidents is well under 10bn and covered by the insurance. You're right that there's also a chance of a state sponsored attack. Though note that reactor domes are designed to withstand airplane strikes. Most state sponsored attacks on nuclear facilities haven't led to disasters and fallout.
On the other hand, nuclear has provided us clean energy for over half a century. Still accounts for over 50% of the US's clean energy and provides and good constant base load.
Coal and gas have a moderate chance of things going wrong. Costs often being in the range of several billion dollars to several tens of billions, a handful being a few hundred. But the big cost is the slow release of carbon into the atmosphere which has led to the largest catastrophe in human history and has an estimated cost of $4 trillion per year.
The benefits are that these energy sources are cheap and can easily be throttled matching demand.
Renewables have a high chance of danger but it is very low in damage (high rate of people falling off roofs and dying). Sometimes there's a high risk but rare (see dams breaking and specifically Banqiao). The other issues are that we don't have a way to provide constant load, there's not enough batteries, low production rates, and some unsolved problems that mean they don't work everywhere and thus require gas or coal to fill in.
The upside is that they are relatively cheap and produce no emissions.
This is the calculous that the scientific community is doing. It's not simple and requires a lot of experts working in different areas working together. The scientific community is asking for nuclear + renewables (not nuclear vs renewables). Preference renewables but when you can't, nuclear is infinitely better than gas or coal. There's some that argue we don't need nuclear but their estimated costs are far higher than renewables with a sprinkling of nuclear. This is a more nuanced debate that I encourage others to read on but take your emotions out of it. The calculous extremely convoluted. Please listen to the scientist. Trust but verify does mean to first trust.