Does your believing in a right to life mean that YOU have an obligation to provide me with food to keep me alive?
I personally have a moral obligation to provide you with that which by the Grace of God, you cannot provide for yourself. That is charity. I have no right to demand that someone else provide you with those necessities nor do you have a right to demand that I do so under penalty of law.
To force me to pay for your food is to rob me of my money and steal from me the opportunity to be charitable with what God has provided me. Frankly forced charity is a sin in that it robs God of the glory and gives glory to the politicians who passed the laws which compel citizens to pay for your food and other necessities.
Churches which advocate for government sponsored social programs paid for by the general treasury are robbing God.