It's more bad-faith horseshit to get leftists to destroy one another, which a lot of leftists love to lap up because their critical thinking isn't real strong and they love nothing more than being "holier than" some kind of previously respected icon.
MTG's amendment left intact the funding for offensive weapons, but cut the funding for defensive weapons for Israel. So there is literally no way AOC could win. Leaving aside the fact that it was a kooky MTG amendment that was never going to pass in the first place... If she voted for the amendment, then everyone who is currently screaming that she's a fake leftist who supports genocide could say "See? SHE VOTED FOR KEEPING ISRAEL'S FUNDING INTACT, SHE SUPPORTS GENOCIDE!" Since she voted against it, they are currently screaming "See? SHE VOTED AGAINST DEFUNDING ISRAEL, SHE SUPPORTS GENOCIDE!"
It's just more can't-win, let's-eat-the-leftest-person-because-we're-super-leftist-I-promise horseshit.
Here's AOC voting against funding for Israel, in an actual bill that was actually a non-Hobson's-choice opportunity to vote against aid for Israel: https://www.timesofisrael.com/liveblog_entry/biden-meets-with-aoc-in-wake-of-her-vote-against-military-aid-for-israel/
And her voting against the actual funding bill providing aid to Israel: https://clerk.house.gov/Votes/2025212
I've also seen people say Bernie is a Zionist, because he says "ethnic cleansing" instead of "genocide." Both Bernie and AOC's vocal opposition to genocide doesn't matter to these people. Actually, it's that genuine leftism that they represent that makes them dangerous, and worthwhile to engineer cooked-up horseshit to use to get other people to turn on them, so the Marco Rubios of the world can take over un-contested.