This is the main poll I saw quoted around when searching.

https://jcfa.org/survey-most-israelis-want-to-see-military-rule-in-gaza-the-day-after/

the current poll indicates a clear Israeli majority (64%) opposed to establishing a Palestinian state

Israels occupation of Gaza and the west bank is wrong.

But, where are you getting this 90% figure? Highest I could find was 65%. Not that any support is acceptable.

Or are we just taking instagram memes on face value?

It feels like this meme is really trying to encourage hate for people just based on where they were born.