I’m curious, have you asked, or have you determined, whether the “liberal Catholics” you know believe in the exclusivity of Christianity?
I believe that many liberal Catholics I know believe in themselves only. IF they go to Mass, it is for the social aspect of it. You see that all the time. But there are very good Catholics in this World and God Bless them for it. Each Religion has their folks that are fake.
I know many liberals who claim to be “Christians”, but once you investigate their belief systems, they are usually New Age Humanists. This is what you describe as “believe in themselves only”, as in “you will be as gods”.
I was just curious as to your experience in the Catholic church.