Are there some churches that believe god knows everything? and therefore has predestined everything? like if some were in end times/saved/?

Self reflection. A lot of people compare their selfs with others, and when they find something good in the person that they don't have they tend to be more judgmental. The best thing to do is just worry about yourself.

And not pay attention when people judge others. Let god deal with them. Don't worry about it.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.