Muslims, be them the direct descendents of the invaders or Hindus converted at sometime by the invaders, they need to be given assurance about their safety and peaceful enjoyment of their life. And also about their equality not just under the Constitution but under Sanatana Dharma.
But development, FIRST!
There can be no doubt that the Mosques atleast at Mathura and Varanasi should be removed and a proper temples need to be restored. Likewise similar exercises can be undertaken at all other important historical sites wherever Hindu temples have been touched by the invaders from outside Bharath.
May be Lord Ram himself may not want a temple in that place where a mosque once stood for four hundred years.