What makes Voldy evil (was: Plugging my theory)

[Susan Albrecht]

Neri:
>> ... the Boa was presented as a nice creature, and
this doesn't work well with a central Snake!Voldemort
theme, but it does fit with JKR typical refutation of
biological determinism: no kind of creatures is
presented as all bad (except for things like dementors
that are not really creatures but representations of
pure evil). So this would suggest that it's not the
snake element in Voldy that makes him evil. But if so,
what does make Voldy evil?<<


SSSusan:
Erm... choice?

Though that could get us into that endless debate over
whether someone who's "never loved" (and by locigal
extension, according to some, never been loved), could
have true choice.

Siriusly Snapey Susan (not saying she buys the above
argument; just playing devil's advocate here)