You would start by not sending them money. Unless of course you needed a justification for your political/expansionist goals.
https://archive.ph/2023.10.14-033824/https://www.haaretz.com...
https://blogs.timesofisrael.com/hamas-israels-own-creation/
Anyway, the idea of embedding military targets within civilian populations is also not exclusive to one side:
https://www.haaretz.com/2012-06-09/ty-article/.premium/does-...
Neither is the use of terror:
https://en.wikipedia.org/wiki/King_David_Hotel_bombing
https://web.archive.org/web/20121226235336/http://www.foreig...
https://www.ohchr.org/en/press-releases/2019/02/no-justifica...
https://www.thetorah.com/article/israels-incomplete-conquest...