It's not a complicated "conflict". Its obviously a genocide. Liberals who say both sides are to blame are participating in the massacres of Palestinians. It doesn't matter if hamas killed any number of Israelis. The so-called crimes that the Palestinians committed can never be equal to the crimes of their oppressors. Especially when their oppressors are killing them with a clear intent of genocide. It is disgusting that zionists hide behind their religion to justify what they do. All the liberals who defend them should get the wall.
Was China not a country prior to 1971, because Taiwan had the Chinese seat in the UN (it meets the international observers standard(?)) and the entirety of China was “disputed”?
As for recognized authority, isn’t it the case that for certain areas of Israel (e.g. certain areas within the 1948 UN partition plan, or 1967 borders) it meets the test you laid out? I.e. people living there agree that the Israeli government is the one that they identify with and international observers agree to recognize the Israeli government’s control over those areas? In that case, Israel would be a country with some disputed borders (I.e. everywhere outside that area with recognized authority).