Based on what I leaned from the article about his final message, the protest wasn’t for Israel’s sake, it was to draw those living under the rule of a government’s attention (whether Israel’s, the U.S.'s, or wherever else’s) to the situation. To point out that we are indeed living through a genocide perpetuated by our own government. Like I question his method, but realisticly speaking, you and I wouldn’t be talking about it if he hadn’t.
And maybe nothing will ultimately come of it, maybe it was a desperate act against his own powerlessness to stop it.
I would argue self immolation is a pretty powerful statement though, you weigh everything you are, everything you could be; against the hope that a message takes off somewhere.
It’s like you didn’t even read the original post. Your first three paragraphs are redundant because the OP already mentioned that they agree with you, barring calling it bullshit.
Your utilitarianism the the whole problems they’re pointing out, if you read the actual post, you’ll notice that all it does is draw us further and further to the right, with no end in sight.