I'm not gonna shit on this guy because I think his heart was very obviously in the right place, but I have to agree with others here in that this is a terrible waste of a life, particularly a life belonging to the one US troop willing to die fighting the Palestinian genocide.
Unfortunately, I doubt he was capable of doing much better because of how massively alienated he must've been. He almost certainly lacked anything resembling a coherent set of politics, and he almost certainly lacked like minded comrades to set him on the right path. Considering he was active duty, I have no doubt he could have found a way to frag some officers, but he probably thought violence would be counter productive. There's a reason why Americans grow up learning about a wildly sanitized version of MLK Jr. and absolutely nothing about the Black Panthers.
So in the end, he spent his last moments screaming in agony for nothing, not understanding that the media was going to effortlessly sweep this under the rug just like it did the last few self immolations. This is so fucking sad, and it's why we need to organize to capture and productively redirect people like this as they radicalize. Rest in peace.