Men and women intermingle in Makkah and Madina and in the Haram.

Answer

If they commit zina in Makkah and Madina, will zina become halaal? Use your brains. Allah Ta'ala has endowed Insaan with Aql (sound brains). If you are unable to employ your intellectual faculty in the way a human being is required to, then maintain silence, for in silence you will have a veil over your ignorance. What happens in Makkah and Madinah today is not the Shariah. Prohibitions and immorality are committed flagrantly in the Holy Cities. The rulers of Saudi Arabia are evil and immoral, hence they permit evil in the Holy Cities.