We go back and forth on this, but my belief is they have separated from Biblical Christianity because of their structure. Their church is a centralized command and control structure, those at the very top dictate to everyone below and they are expected to follow those commands or they are not in good standing. The power to enforce these commands rests in their teachings that all of God's graces bestowed on Christians is first filtered through the church.
In this environment that does not promote independent thought is it surprising that RC's wouldn't question the obvious inconsistencies? I think the RCC is never going to reform and that as Christians all we can do is preach The Gospel on a one on one basis and pray for God to give them ears to hear.
It is Providential that I make my argument and then wmfights proves it.
Here the dictates from the top stifle creativity. There the absence of dictates from the top permit heterodoxy. Fabulous!