Ok, this sounds valid. But what would oblige them to stop them from delivering weapons if the ICJ rules it is a genocide? Is there any legal obligation, can they denounce the ruling?
If you mean acknowledge in a sense of civilian/political acknowledgement, then my issue with it is that it shouldn’t be necessary to be this anal about some definition. It’s splitting hairs on cut off heads. Supporting mass murder is wrong in the context of genocide as well as outside of it. It shouldn’t be necessary to convince the governments that it is a genocide to convince them to stop supplying weapons.