The Saudis say they are governed by sharia law. That means Makkah has a special legal status as a holy city and the birthplace of the Prophet based on the Holy Quran. The problem isnt about the status of Makkah. Their behavior is governed by Wahhabi doctrines which sees giving importance to monuments not related to the Islamic faith as shirk or idolatry. That includes graves, even of revered men in Islamic history. Their attitude has to do with doctrines and not about status of the city.There is no insult I'm talking from a legal point of view ; Mekka does not have a special status it is part of Saudi Arabia!
That is the reason I feel you are exposing your deep seated feelings while taking cover under issue of legality.