Great point. Sadly, we've witnessed even "conservative" Roman Catholics buying into the socialist agenda of a one-world "global authority," and popes who tell us muslim beliefs will earn a man a seat in heaven.
It is a liberal church because it believes men are capable of goodness on their own, regardless of some of its adherents' correct stand on subjects like abortion.
One world global authority is the invention of a stiff-necked Calvinist Presbyterian, Woodrow Wilson, America’s first fascist president.
I think this may be a product of it's organizational structure. The primitive Christian churches were decentralized, leadership was developed from within the church, services were not scripted, the pastors were not elevated and the unity of these churches was based on a common FAITH.
Once a centralized hierarchy emerged sanctioned and supported by the state it was only a question of time before it would dominate. From that dominant position you see doctrines "evolve" where these beliefs now point back to this dominant church as controlling an individual's salvation. Centralized power in the hands of a few "for the good of everybody" is the liberal mindset.
The interesting thing is that during that period where a decentralized Christianity existed the Scriptures were identified and growth in numbers was due to individual one on one contact presenting The Gospel. Once a dominant hierarchy emerged conversion became more of a state mandated practice. Also, during that decentralized period you read in Scripture of churches where they spoke in tongues, others were pretty strict in their structure and others in between the two.