I am not going to take advice and guidance from a failed Catholic unless it is to point out where you went wrong. This battle is not for the weak and the quitters. If you believe can find peace and salvation in the message of another denomination and not in the Catechism God Bless or God help you.
Since you know neither of the parties to that discussion you don't know what has or has not been attempted. You also place little faith in the power of truth and the ability of the Holy Spirit to effect change.
From my own personal experience in the RCC, which you have no knowledge of either, the Holy Spirit often has little to do with the political and financial decision making of the organizational hierarchy. I know what I speak of being there. I know what I’ve seen and heard and experienced and learned what I know from the priests who were close family friends and leaders of congregations. If you want to romanticize and idealize how RCC church decisions are made, well that might work for you. Don’t rip on others who see these things going on they believe are unbiblical, and decide to separate themselves from it.
Your condescending attitude towards other Christians not in your denomination is also unhelpful, unflattering and based on the RCC’s own track record, hardly defendable or deserved.