[flagged]
A baby Hitler gaurantees a future with a grown up Hitler. Killing the baby eliminates that future.
There could be other babies that can also grow up to be future Hitlers. So let's say 4 such babies exist. By killing one I eliminated 1/4 for futures with Grown up Hitlers that exist.
This whole thread is getting flagged. Likely by an irrational parent who can't even compute natural selection, babe, and Hitler all in a single paragraph.