Wait, how was there not interference with voluntary business dealings? A renter and a landlord voluntary sign a contract. The renter says "I will give you $XXX

Wait, how was there not interference with voluntary business dealings? A renter and a landlord voluntary sign a contract. The renter says "I will give you $XXXX a month for 12 months", and the landlord says "I will provide a livable home for you for the period of 12 months." Both agree: voluntary business dealing. Now the government comes in and says "Hey renter, you no longer have to fulfill your half of that agreement, but the landlord still does". The government has directly interfered with the voluntary business dealing between the renter and the landlord. Consider the counterexample: the government comes in and says "Hey landlord, you no longer have to keep the home livable or do repairs, but the renter still needs to pay rent." This would be just as much an interference with voluntary business dealings as what really happened, and everyone seems to agree on this point.