The first one is down to the beliefs of the individual. The fact that so few people are practicing Catholics suggests that the majority of people don't think that the RC Church is the conduit to that objective mortality, if they believe it exists at all.I see three things being conflated there: 1) is there a god who is the source of objective morality, 2) are some things objectively bad, 3) are there hypocrites in the RC church? Seems to me the answers to all three are somewhat independent of each other.
The second is also down to the beliefs of the individual but the balance of the collective view is expressed through our laws.
The third is self evident as we are all hypocrites to a lesser or greater extent. We don't all set ourselves up as moral authorities.
I don't see any of the three being material to the point I was making as it was just an opinion as to why the RC Church has lost its appeal for so many people.