Virtually every country in the world and in particular the UN considers that as Israel controls the borders to Gaza it is still de facto occupied. This is a fact. I'm not sure what you fail to understand here?
You said: "everyone except the USA" considers Gaza occupied.
That is not a fact; it's a statement made by you, based on what some member of the U.N. Human Rights Commission said.
The UNHRC does not legislate international law, and arguably they do not interpret it very intelligently either; they spend an inordinate amount of their time focusing on Israel's supposed human rights abuses, almost to the exclusion of all the other problems in the world, e.g. China, Pakistan, Turkey, Syria, Africa, S. America, and Russia.
As to your statement that Israel controls the borders to Gaza, that is simply not true. Israel and Egypt control the borders, which is a significantly different situation. I don't notice the U.N. claiming that Egypt "occupies" Gaza, yet by your definition and, apparently, the UNHRC's, they do.
The fact is, Israel supplies Gaza with electricity and data services, and they allow about 16,000 tons a week of goods into Gaza. They are rightfully afraid of deadly arms being smuggled into Gaza that would be used against Israelis, so they inspect all cargo from land and sea.
None of this precludes entrepreneurial activity in Gaza, however, as this woman demonstrates. It would be nice if there were peaceful relations and an open border, but that is up to the Gaza people to figure out, when they are tired of war and would rather negotiate some kind of permanent deal with the Israelis. But to get to that point, they have to put down their guns.
