I mean the only countries that aren’t members are the US and Israel I think . . . oh and Russia, China, Libya, and Qatar. Noice.

That ability to claim jurisdiction over individuals unlikely to be prosecuted in national courts is probably one of the key reasons why some prominent nations like the United States, China and Russia continue to decline to sign this particular treaty agreement.

https://nomadcapitalist.com/global-citizen/countries-arent-part-of-icc/