One Alternative Universe

The Weasleys are not Blood Traiters, very the opposite actually, they were in the inner circle of Voldemort. The Malfoys on the other hand are very neutral, they don't hate muggleborns but neither are they muggle lovers. Harry accepts Draco's friendship in the first year, how does this universe work? Set from fouth year, charectors will be different to the books HP/AG DM/HG