Age of entitlement. These are the people voting for Communists to take money from others and give it to them in the form of "free" college, healthcare etc.
Under the circumstances revealed, I would only say that the delivery man was out of line and deserved no tip at all. I would ask for the $5.00 back and tell him that the reason for my asking was his comment about my house. He is paid to deliver Pizza not to state that (”home values should control the amount of the tip.”)
Fire his sorry ass!