Where has all this 'I love Holtz' type of crap come from?
Holtz was a church loving God fearing type of person who chose to be a disciple of a demon, a disciple of the devil.
This discussion started out being if the hero (Buffy) should not kill a child, vampire or not.
Not about some idiotic self-professed religious zealot, turned fanatic who then ignored the church completely by accepting help from a demon and thereby from the devil.
Then to top that Holtz tried to kill Angel; a demon that wanted to renounce his evil ways, who chose to do good and be acceptable to God. Hadn't Holtz ever heard that God sits in judgement? That he may forgive?
That wasn't good enough for Holtz, he wanted revenge and by doing so declared sod the church and sod God.
And now you want to go on about if it'd be okay for Holtz to kill a vampire, his child, his daughter.