Here's a thought experiment:
Imagine that Egypt, Jordan, and Syria had won the Six Day War, leading to a massive exodus of Jews from the territory of Israel. Imagine that the victorious Arab states had eventually decided to permit the Palestinians to establish a state of their own on the territory of the former Jewish state. (That's unlikely, of course, but this is a thought experiment). Imagine that a million or so Jews had ended up as stateless refugees confined to that narrow enclave known as the Gaza Strip. Then imagine that a group of hardline Orthodox Jews took over control of that territory and organized a resistance movement. They also steadfastly refused to recognize the new Palestinian state, arguing that its creation was illegal and that their expulsion from Israel was unjust. Imagine that they obtained backing from sympathizers around the world and that they began to smuggle weapons into the territory. Then imagine that they started firing at Palestinian towns and villages and refused to stop despite continued reprisals and civilian casualties.
Here's the question: would the United States be denouncing those Jews in Gaza as "terrorists" and encouraging the Palestinian state to use overwhelming force against them?
Here's another: would the United States have even allowed such a situation to arise and persist in the first place?