Bolded is the foundation upon which the rest of his argument rests. And, it contains at least one unstated false premise: society is government/government is society.
His is sloppy thinking, a failure to perceive a distinction/difference. He says, "Yes, you are a part of a larger body of people," and then calls it the United States of America. The government is not the nation. The nation is the people. The government is the government.
Further, he offers no substantiation for why "you have to do things to contribute to this country". He just asserts it. Now, if he uses the usual explanation this mentality offers, he'll be along shortly and say something like, "you receive benefits, therefore you must pay", without actually explaining why you or I should pay even for the benefits we might agree are benefits if we did not actually agree to the obligation voluntarily.
His whole argument rests on a socialist/communist construct. The individual owes to "society". Society is much or everything; the individual is little or nothing.
They'll use any and every argument to justify their position that it is legitimate for them to coerce (threaten violence) to force you to pay. They will even distort consent all to hell. But, the one thing they won't do is cleanly explain why its OK for some equals to coerce money from other equals. Their arguments are always full of holes. They're really just avoiding coming right out and saying, "because I want to", which would really just prove they're lying about consent and equality. Nope, they can't afford to do that.