I mean honestly, this sort of question is why I’d personally never pursue a career in politics.
Unless I was super clear upfront that “Here’s the religion I make literally every decision by, guys. Be aware of implications X Y and Z” and the population still somehow decided to elect me.
Personally I struggle significantly with the intersection of religion and politics, because from my perspective religion tends to call for virtue ethics – whereas politics tends to call for consequentialism.
I mean, unless there was not one atheist in the country I was governing, I’d be really uncomfortable with sacrificing their life along with the remaining country of believers (suppose for this thought experiment that all those believers are fine with potentially dying or being conquered because of losing the nuclear deterrent).
It’s one thing to make decisions that call for sacrifices for myself. It’s another to ask someone else to potentially sacrifice their life for a cause they don’t believe in. And that seems to be a huge weight that political leaders bear, so… I guess I have no real answer to your question except to say that for reasons related to those you raise, I’d never pursue the job.