If Israel looses the american youth (where charlie had giant influence) they're cooked this is existential for them
He appatently urged trump not to invade iran (another existential issue for israel) and faced extreme push back from his jewish donors for it .
https://thegrayzone.com/2025/09/12/charlie-kirk-netanyahu-israel-assassination/
Also why would Bibi be amog the first to tweet about it?