Well, it's plausibly justified because the US considers a strong regional ally like Israel a valuable asset to have in the Middle East and if Israel is a regional hegemon [1] then all the better.

There have been many arguments that the US' support of Israel goes against US interests [2], but that really makes no sense. It's not just Trump who has to be convinced to start a war for Israel, it's the entire defense establishment in the US.

And also in Israel. If fighting half a dozen wars all at once was really that bad for Israel, surely, someone would have put a stop in it.

Surely.

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[1] Got that term from J. Mearsheimer, if you were wondering.

[2] Particularly the Tucker Carlson - Judge Napolitano - Col. Daniel Davies continuum of mostly conservative podcast hosts. Or those are the ones I follow closely anyway. They're all convinced it's all "because of the lobby".