The word world is literally in the name… When I joined lemmy I started there because I assumed it would be a general instance. It’s like worldnews where 90% of posts are US politics. Also, it’s not an obsession, most times it comes up it’s just a joke (like this meme).
Israel has put great effort into tying judaism with zionism. The people that went to school in Israel (but also some jewish people abroad through jewish educational programs sponsored by Israel) learn that any attack on Israel is an attack on jews akin to the holocaust, and that all Palestinians want to kill all jews. Israel as an apartheid state has also been very attractive to racist people who do not care and even welcome a genocide of the people they consider to be ‘lesser’. Israel used that to advertise to such alt right people so that they can continue to violently colonise more Palestinian land. The people that do not condone apartheid and genocide were more likely to leave in the last decades (if they were able to) leaving those still there as a minority.
Netanyahu’s popularity rose with the invasion and large scale bombings of civilian targets in Libanon. That should tell you enough about what most Israeli’s think of the genocide.