Sin is sin…
However, all sin is against God, and He determines what is sin against Him. God speaks authoratively through special revelation known by Catholics as Sacred Scripture. Protestants are not bound by tradition or the Magestrium when determining the Christian Faith in life and in doctrine. The Magestrium and Tradition does not bind the conscience of Protestant Christians. Some things are crystal clear in Scripture. We believe life begins at conception. Actually, I believe life begins before conception… I believe life begins in the mind of God prior to conception. However, the Catholic position on birth control and most other things are not defined within sola scirptura, but rather the Catholic Faith is defined by Scripture and Tradition, meaning the Magestrium binds the Catholic conscience. It’s similar to the prohibition of marriage of your Priests and Nuns…that’s an unbiblical view. We all know that Peter was married.