Voldemort/Pure Bloods/this goes back a few books

[Suzy]

No: HPFGUIDX 67749

Someone please remind me why Voldemort feels so superior to "half-
breeds" when he himself has a muggle father?  I know the whole story 
about how his father abandoned him and that's why he hates muggles, 
blah blah blah.... but how did he get all of these followers behind 
him when they must know he's not a pure blood wizard?  Wouldn't he 
be on the hit list himself?  

Suzy - Prisoner of Little Whinging
(Who thinks Petunia is definately hiding something and Fudge is 
addle-brained and no use to either side)