Some things:
ofcourse, droids are not human and I never said that, but if you can think on your one and can speak you are a 'person' none the less. If you still kill them it is wrong, only in defence can that be justified.
To give a rude example:
When it was WOII, who was the bad guy? Hitler or the soldiers or everybody?
It's not because there is one rotten fruit the others are rotten too.
The soldiers (in SW the stormtroopers) just carrie out orders and do not have any politic influence. So are they also bad?
The Western thing: ok, but I think you make a link between Lucas and the other guy. But making the Jedicode was than a big mistake.
See Revange of the Jedi => Return of the Jedi