I'm not sure that Tom Riddle's actually inbred - after all, his father was a muggle, right?
That, by necessity, would infuse some non-pureblood blood into his veins, right?
You're totally right in regards to everyone being related to everyone within the Wizarding community. And hell, the squibs that marry into Muggle Society probably account for half of the "spontaneous" first-generation muggle-borns.
ETA: You're totally right that it could be a viable interpretation of events, though ^_~ Especially if James then ran around trying to gather pieces of Voldemort's power into himself by using the Horcruxes...
*Waves hand like First Year!Hermione*
That, by necessity, would infuse some non-pureblood blood into his veins, right?
You're totally right in regards to everyone being related to everyone within the Wizarding community. And hell, the squibs that marry into Muggle Society probably account for half of the "spontaneous" first-generation muggle-borns.
ETA: You're totally right that it could be a viable interpretation of events, though ^_~ Especially if James then ran around trying to gather pieces of Voldemort's power into himself by using the Horcruxes...