From the Kuttab article:

For Netanyahu, the assassination of Khamenei is a major success. Facing crucial elections that could mean the possible end of his political life and maybe his imprisonment over four corruption charges, the short-term gain in popularity and votes is worth it. Israeli leaders do little thinking and planning on the mid- to long term and do not have to bear the consequences of military adventurism abroad. After all, Israeli society is very much in favour of it.

But for Trump, the gains are not as apparent. He gets to brag about killing an 86-year-old ailing leader of a faraway country to a public that has no appetite for war. At a time of a continuing cost-of-living crisis in the US, he is spending billions of taxpayer dollars to fight a war against a country that posed no imminent threat, a war that many Americans are increasingly identifying as “Israel’s war”.

Instead of projecting power, Trump risks showing weakness and being seen as a US president fooled into starting a costly war to ensure the political survival of the prime minister of a foreign country.

I think he misreads this, perhaps not being in the US and seeing all of the Epstein files controversy up close and personal. And Trump is a convicted felon with other trials on hold. They're both killing people in other countries in order to keep themselves out of prison and enrich their families, the worst kinds of despots possible.