We can both build Nuclear that is safe and also build it faster. Its a matter of political will and reasonable regulation. Nations looking on the 100 year horizon would build nuclear and they would be newer and safer nuclear as time goes on. The next generation of reactors are safer and promise to be cheaper to build but the last of the GEN4 nuclear still are safe especially when we actually pay to have nuclear regulator inspectors. The things we are willing to be cheaper on are always the inspectors but never the permitting its so backwards.

For China, nuclear power plants are still not very important, they build a lot new coal power plants.

"2025 also saw China commission 78 GW of new coal power capacity, which is more than India’s net coal power additions over a ten-year period from 2015 to 2024"

https://energyandcleanair.org/publication/built-to-peak-coal...

The reason why people tend to get a bit cheerleadery about nuclear power is because it has some great PR and it resonates with them.

It needs the PR because it is so unconscionably expensive. The public needs to be primed to consent to indirect and direct subsidies.

The reason China, US, France, it is because it shares a skills base and supply chain with nukes.

The reason Sweden, Poland, Iran, etc. build a few plants is because it shares a skills base and supply chain with a nuclear weapons program they might want in a hurry one day. It's always obvious for those countries who the existential threat is.