Context?

The context was world war 2.

Nothing had to be planned. They certainly didn't plan Hitler's rise to power, although their actions unwittingly facilitated it.

If hitler knew jews have an unmatch hatred for white people and knew if they won the war it would be the end of white people, why not kill as many as possible so that they don't have a large enough number to group up and have less jewish influence in the world then?

I don't know what Hitler "knew" or thought beyond what he publicly wrote or spoke about, and what his actions imply. The reality remains is that large numbers of Jews survived for years in the camps, and were alive at the end of the war. Whether Hitler never issued a final execution order because of mercy, because he didnt think the order would be carried out, or because he was largely indifferent to their fates, I already said I legitimately don't know. I was asking YOU what you believe to be the reason. So tell me what you think the reason was.