This is a lie. The "acts carried out by the Israeli army in Gaza" involved telephoning people ahead of airstrikes and using dummy munitions to get civilians out of an area before attacking enemy army facilities. This is the opposite of intentionally killing civilians, with the result being that the Israeli operation had a low rate of civilian casualties comparable to NATO's "clean war" against Serbia. That is even more impressive when one considers that the Gaza war was fought in an urban area with civilians present in every crossfire while the war against Serbia primarily targeted military assets separate from urban areas. Israeli policy forbids intentionally harming civilians, and soldiers are punished when they do. Hezbollah does kill civilians as a matter of strategy and they cheer about it. Ask Rafik Hariri, the former Prime Minister of Lebanon and a popular politician. Oh, you can't. They killed him. Look at the reception Hezbollah gave Samir Kuntar, who they considered a hero for landing on the Israeli beach and bashing in the head of a four-year-old girl. In the face of this hatred, Israel continues to teach peace, tolerance, and coexistence. Whoever promoted that comment comparing Israel to the murderous genocidal fanatics that it fights against should be banned from HN.

All of this is beside the point that US law forbids trading with the enemy. US law considers Hezbollah to be the enemy, and Twitter was caught providing services to Hezbollah. A guy in New York was convicted for broadcasting Hezbollah's TV channel. The legal structures here should be no different. If this law did not exist, a charge of treason could be made under the Constitutional definition, although it would be difficult to prosecute due to the lack of precedent.