Israel has no land and has no borders. It is not an opinion.
You're right. It's a delusion fueled by irrational hatred.
Seriously, it is true. If Israel had any land there would be a border to define where that land is. When the foreigners declared themselves to be the state of Israel in Palestine with no legal standing to do so, they declared the resolution 181 proposed borders.
Resolution 181 was never implemented by the Security council. Many believe that the UN created Israel. It did not. It did not partition Palestine and it gave Israel no land. The 181 borders are recognized by nobody, not even Israel.
The 1967 borders, or green line, were drawn by the 1949 UN armistice agreements. They were specifically
not to be borders. The armistice agreements recognized no land or borders for Israel. The 1948 war was called by UN Security Council resolution. Nobody lost that war.