To start with, the restriction on entry to Makkah and Madinah is not made by any political or human authority. Thus it cannot be questioned as though it is something that a government or a leader has put it in place. Nor can the argument of equal treatment be given here. Moreover, Muslims have not asked the authorities of any religious place to make that place open to them. They decide to invite visitors or prevent them.
Suppose, for argument’s sake, that the Vatican authorities decide to ban non-Catholic people from visiting their city. Will anyone have the right to question them? It is their city and they do in it what they like.
Having said that, we may add that the prohibition gives a clear indication that God wants to keep Makkah a city for worship and security. As such it cannot be transformed into a tourist resort. That is totally unacceptable.
The same applies to Madinah which has been restricted to non-Muslims by none other than the Prophet himself. When God and His Messenger decree something, the only thing open to us is to obey their decree.
A.2. No, that is not required. The tawaf of farewell is required at the end of the pilgrimage. So, if a resident of Jeddah offers the pilgrimage, he or she should do the tawaf of farewell at the end of their pilgrimage, like all pilgrims who come from outside Makkah.
When a person leaves Jeddah to go home, he leaves it without having to visit Makkah. If he fears that he may not come back and wishes to make his final day in Jeddah one of worship, and he goes to Makkah for tawaf or Umrah, that is a highly rewarding action, but it is a matter of his own choice.