I read the source Blumenthal used.
https://theintercept.com/2024/01/11/israel-air-force-targeting-intelligence/
It's pure speculation on the part of the article's authors couched in wording to make it appear what they are writing is actually fact when it isn't. They back up their speculation using a modal fallacy. That is, what is historically true in the past is being used to affirm what is happening now even though there is no direct evidence to support that.
That is:
In the past the US has put forces in the Middle East that have targeted terrorists and others for military strikes. Therefore because the US has put forces in Israel, they are being used to target terrorists and others for military strikes.
That's the claim the article makes. They have no evidence to support that, and even quote some US military officials saying that isn't happening. But their take on all of that is essentially a conspiracy theory that all of the contrary evidence is a lie and the reality--unsupported-- is the US is helping Israel target stuff in Gaza.
Given that
The Intercept is a known, radical Leftist publication, with questionable use of facts, and that the radical Left in general is opposed to Israel and the war in Gaza, it kind of goes that the authors of this article would spin it to make the US military out to be helping Israel and make demands they stop and leave.
So, a very junior Air Force enlisted decides on the basis of such, let's call it propaganda, that he doesn't want to deploy to Israel and immolates himself, is just someone being an idiot.