It's a different case if the person's body is not capable of absorbing them, e.g. a dying person in danger of choking on food administered orally, and too frail for NG or surgical interventions.
Even in this case, IV hydration can often keep the patient comfortable. Good palliative care workers know the basics of comfort care. To remove them to deliberately bring on or hasten death, when the patient's body is still capable of processing and using them, comes under the category of murder.
So Before IV’s and Feeding Tubes existed then what? You think you have the right to force someone to eat or drink even if they choose not to do so. YOU DON’T.