Netanyahu has visited countries which are signatories and not been arrested. Even politicians in the Netherlands have said that they will not arrest him if he comes.
You're referring to the cutting off of supply lines into places where the enemy has chosen to embed themselves. With almost infinite video proof of misappropriation of all humanitarian aid (food and supplies) of their citizens during the conflict.
This is literally how every war since time has gone. The "Starvation" nomenclature is propganda, which to their credit they are CRUSHING at.
International organizations already warned that this might happen if the Israelis and USA would try to supply the aid directly by themselves, because this requires a level of expertise that they simply don't have. However, Netanyahu wanted to take matters in his own hands and the result was another crime against humanity.
Yep. Israel is still a party to the starvation and restriction of humanitarian aid. Hamas notwithstanding. Both sides can be evil. Two wrongs don’t make a right etc etc.