No one here is saying “killing is good.” That’s just a strawman you’re constructing so you can feel superior.

You are however strongly implying that you believe everyone who doesn’t think and act like you should somehow disappear or cease to exist.

So while you didn’t directly say “killing is good,” you did at least make it clear that you would prefer a world where at least half of it mysteriously dies. And combining that with you telling someone to remove themself from the world, it paints a pretty vivid picture about you.