You don’t have to choose between one and the other; that would be like having to choose between being a loyal, patriotic American (because you love your country) and supporting the victims of the Japanese internment camps perpetrated by the U.S. against its own citizens during World War II.
We are all just as appalled as you are by the Church’s sex abuse crisis. Granted, most of us can’t relate to the pain you feel because of your own history, but we all agree that what happened was absolutely, totally unacceptable in any institution, let alone God’s Church.
But that doesn’t mean that the Church is wrong when it teaches that the Lord Jesus Christ is the only-begotten Son of God, begotten of the Father before all worlds, God of God, Light of Light, Very God of Very God, begotten, not made, being of one substance with the Father by whom all things were made. The Truth is the Truth, no matter what crimes have been committed in its name, no matter what terrible decisions or mistakes were made by the people of God, and no matter who has been hurt by the terrible actions and omissions of those who above all were expected to do better.
When you are challenged about how the Church can possibly be believed now, given what we know about the sexual abuses committed secretly against so many people over the years, the answer is that the Church, while holy, is imperfect; and some people in her ranks committed terrible crimes; others covered them up; still others turned a blind eye; and even more were negligent in uncovering the crimes. Those involved should pay, and everyone else should be careful to make sure that nothing like this ever happens again.
But that doesn’t change the fact that the moral teachings of the Church – as distinct from the actions of her priests – remain true.