It's hardly possible to do worse
There are about a million ways to do worse.
For example, a U.S. president could send American ground troops into Gaza. Or recognize Gaza and the West Bank as Israeli territory. Or increase military aid to Israel tenfold. Or launch a preemptive military attack against Hezbollah. Or launch a ground attack against the Huthi rebels for firing rockets at Israel. Or increasing tensions with Iran for funding Hamas. Or round up suspected Hamas supporters in the U.S. and deport them. Or round up suspected Palestine supporters in the U.S. and hold them in indefinite detention. Or create a House Committee for Un-American Activities. Or bring back "enhanced interrogation" for questioning Americans suspected of un-American activities.
The possibilities are really unlimited.
This is like arguing that voting for Hitler as Reichskanzler wouldn't be so bad, because at worst he would be doing the exact same thing as Kurt von Schleicher.