I have hepatitis and bad liver from a blood transfusion in 1980s. My doctor wants to start meds but why bother?

To stay alive. I assume this is either hepatitis b or c, both of which are now treatable. If actively producing disease it will progress to cirrhosis of the liver, liver failure and a high frequency of hepatocellular carcinoma. Treatment is difficult and not exactly a joyride, but slow death from this condition is not a pleasant alternative.