For pit bull owners: Why is it so wrong for the breed to do bite work?

I posted a thread on pit bull chat about the breed being trained as guard dogs and I think I may have started a war.... Hell there's people over there that think they shouldn't even do schutzhund and schutzhund is just a game! I myself am a pit bull owner (and you all know what breed I mean) and I see... show more I posted a thread on pit bull chat about the breed being trained as guard dogs and I think I may have started a war.... Hell there's people over there that think they shouldn't even do schutzhund and schutzhund is just a game! I myself am a pit bull owner (and you all know what breed I mean) and I see absolutely nothing wrong with the breed doing this type of work. How is it any different from a Malinois doing bite work?
Update: actually the Doberman was bred for human aggression.
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