Trump moved the US embassy to Jerusalem... which previous administration wouldn't do while the city was disputed. He gave the green light to more settlements and the annexation of the Golan Heights. And he sent his corrupt and incompetent ghoul of a son-in-law to cut deals with the Gulf Arab states with no consideration of the Palestinian Arabs at all.
I cannot think of one person more responsible for the current round of hostilities, and the competition is pretty stiff.