Or is it that many liberals don't get it?

Why is it always the clergy and the Catholic Faith that needs to change to accommodate liberals?  Why don't liberals ever need to change?  Why don't liberals ever have to be challenged to think outside the box?  

Why are the modern trends and whims of pop culture always assumed to be correct, while the Catholic Faith is always assumed to be wrong, or dated?  Why is it that it is always the Catholic Faith that has to conform to the values of the world and never the other way around?

If we are just going to adopt whatever fancies pop culture of a given time and believe nothing, why be a Church?