ROFL! No we don't. You're resorting to the ethics of Guido the Leg Breaker again.
Sorry, but my fair share of expenses that I haven't agreed to is zero. That's how legal contracts work. Simply benefiting from something someone else has done doesn't obligate me to do jack squat. I benefit from the existence of the gas station on the corner. Does that mean it's entitled to collect a payment from me whether I guy gas or not? I benefit from the invention of the light bulb. Does that mean I'm obligated to make payments to the heirs of Thomas Edison?
The question here is whether government is justified in extracting wealth from my hide at gunpoint to provide "benefits" that I haven't asked for or want. Every principle of law says "no." You are only obligated to pay for what you have agreed to pay for.
Can't agree more, however, as a citizen of this country I am willing to pay for common defense, judicial expense, basic governmental expense to protect my freedom and security, and maintenance of state owned land. As for being a resident of a state I would be willing to pay the state for maintenance of the highway's, roads, police protection, education of our youth from grade 1 thru 12, water/ sewer, and fire protection.
One fact remains, the definition of a liberal is one who has their hand on your wallet for their benefit at your expense.