You make no sense at all. Catholic clergy aren’t robots that the Pope controls remotely, they are messy, thinking people with their own bias’s and demons and prejudice.
The fact that you think 1,000,000+ different people, even under a “unified” religious doctrine (that has some wide schisms active even today) would all instantly act in lockstep when their leader makes a new change in doctrine is just flat out wild. It just the weirdest and most unreasonable thing to be upset about, but here you are.