Absolutely right. The bible teaches throughout that sin comes from the heart. Thus, cutting off physical members won't stop sin. In fact Jesus said it was a sin even to have sinful thoughts. Should people also cut out their brains? One thing the passage does establish without question: The horrible reality that hell does exist.
“The horrible reality that hell does exist.”
Yes, I have been thinking of late that if evil were not an active force...then it would have ceased to exist by now. It has to have a power behind it to continue on...to tempt us to do wrong.