A "contract" is a voluntary agreement between two parties. The "social contract" is, by definition, not a contract because I did not agree to its terms voluntarily. I pay my taxes because if I didn't pay them, men with guns would come and force me to pay, or carry me off to jail. You can make a case why some government functions and the taxes to pay for them are good things. I'd certainly agree to paying for military and police protection. But that doesn't make it a "contract". Your insistence on using dishonest language undermines the seriousness with which we can take your argument.