I firmly believe that life begins at conception and ends when God says so, not when a doctor or court decides. No machines for me!
A feeding tube and IV IS NOT a machine.
If it's all the same to you, I'll take my antibiotics and vaccinations...
Causing a helpless person to die of hunger and thirst is not "letting life end when God says so." It's criminal neglect and it's painful and cruel.
And if you've been paying attention to God, you might note that He says it is obligatory to "feed the hungry" and "give drink to the thirsty." (Matthew 25)