Quite the opposite. Heretical doctrines abound.
That everyone’s ideas are as good as anyone else’s?
That is true - Ideas are only ideas. It is doctrine held in esteem falsely, and doctrine at the level of Word that is false.
That truth is relative?
There is only one truth.
Or are you saying that God has not given anyone the power to judge in these matters?
The Spirit sanctions, be it churches or men.
Given the obvious doctrinal abuses of many churches and individuals, how exactly does that happen in your system?