It sounds like part of you is dealing with one of the great classic philosophical debates of all time: absolute morality vs. moral relativity. This is a debate that’s so old, that it predates Christianity.
I work as a history professor, so let me explain:
In the earliest days of classical Greece, there arose a group called the Sophists. At first, they were simply the world’s first paid teachers and tutors. They would be intelligent people that would be hired by others to share their knowledge with them. Over time, however, a certain group of Sophists became so famous, that a specific school of thought arose around them. These Sophists were led by a man named Protagoras, who coined the phrase “Man is the measure of all things.” Well, what did he mean? He was stating that morality is in our mind, and so what might be right for one person might not be right for another, and that was ok. For example, while I might think it’s a sin to drink alcohol, others might think it’s ok at 21, or at 18, or at 14, and so on. Different people and societies would believe different things, and so the majority opinion would generally become law. But, since the law was not rooted in any moral truth, it could be changed at will.
Soon, a man arose to challenge this idea - the great Greek philosopher Socrates. He believed in moral absolutism, or that morality is fixed, regardless of what we believe. He argued that this had to be true, because there are some crimes that are universally accepted, like murder, rape, and theft. No matter where you go, whether it be the USA or England, or China or North Korea, all of these societies agree that certain crimes are universal. Socrates believed that ALL morality was absolute, and that if you disagreed, you were simply wrong. He would argue, for example, that something like premarital sex is always wrong. Now, in ancient society, just like in the modern, there were many varying opinions on this. However, while Protagoras would say that this is perfectly acceptable, Socrates, would say that those who believe in premarital sex are simply incorrect and should change their habits to conform to the true nature of morality and the universe. He also believed that although a state could create an immoral law, it was still important to follow the law as best as morally possible to avoid chaos. By the way, Socrates was so sure that he was right about absolute morality, that he died for his beliefs. He frequently criticized democracy as being a government of amateurs, and so the government of Athens eventually condemned him to death. Rather than flee or go into exile, he voluntarily drank hemlock and killed himself. He wasn’t willing to go against the judgement of the state, which he believed was absolute. He was willing to admit that his opinion could be wrong.
You see, Socrates realized that if you believed in moral relativism, you could justify anything, since there was no basis for morality to be true except our own mind. Instead of something being wrong, you could just legalize it and VOILA… it’s ok! Think pot should be legalized? Ok! Think prostitution should be legalized? Ok! Take this to it’s logical extension, and you end up with the Nazis. Think it’s ok to murder Jews? VOILA… it’s ok! This was the danger that Socrates warned about, and what he was trying to combat.
Now, how does this impact the topic at hand?
Protestantism is a morally relative system. People pick and choose a denomination based on how closely it mirrors their OWN personal moral beliefs.
Catholicism is a morally ABSOLUTE system. People are given a moral code, and if they disagree, they are wrong, and then expected to learn why they are wrong and correct their behavior.
Two final questions:
- Which are you?
- If you believe in God, do you think he would let individual humans determine morality for themselves according to their best judgment, or do you think he assigned certain moral precepts for his followers that were absolute?
You do not have to believe every detail of The Cathecism; You need to know and agree to Basics, Like Papal Infallibility: That means he is Infallibble when “Ex Cathedra”: official Papal Bull Declarations. The type of Breakfast he likes, the type comedy he likes are not Infallible, as none of ours are 
RCIA is the Requirement from the Apostles, to Learn, Know the Church they want to join, as the long teachings in the Catacombs to even be present For the Consecration: The MOST SACRED moments In the Church. The Catacombs of 1900 years ago and RCIA now teach the Church basics to Qualify One for the Sacraments Many RCIA graduates told us it was the most beautiful moments in their life, including First Child and Marriage.
The sermon is the highlight of many non-Catholic services but the Consecration is the highight of a Catholic Mass.