The child murder is unfortunately unsurprising. Israelis have gleefully murdered children long before Oct 7, and the escalation had just provided more opportunities for them to do so.
I just don't understand why Biden hasn't stopped the transfer of military equipment. Everyone, even the coldest psychopath, has a cost-benefit analysis to guide their decisions. I can't see any political, geopolitical or whatever benefit the USA may be getting from this. There must be something else going on that is not public.