points of why shylock shouldn't kill antonio?

Shylock is already stereotyped as a stingy and cruel Jew. Taking a pound of flesh would only intensify the anti-Semitism that Christians feel towards Jews. As well Shylock would end up murdering Antonio which would mean certain punishment for him. We also must ask if Shylock could handle such a thing? His own pain and rage spurs him on but actually doing it might profoundly affect him, not in a good way.