"Protestants believe each person is his/her own interpreter of what the Bible says.
Yet some Protestants wonder why there is disunity in Christianity.
RWGR contends that every Protestant can interpret in his own way.
Several problems with that. If really true, there would not be 40,000 churches as claimed so often, but millions. But there aren't. Furthemore, as Blue pointed out, we agree on probably 95 percent of interpretations, and VERY little of the rest affects true salvation in any way. Another problem with his contention is the fact that we band together in assemblies, with agreement among us as to what we believe. And then there is the work of the Holy Spirit in the believer.
I like what this says:
"If we keep this in mind, we will not make the mistake of assuming that any sudden insights we get into the meaning of the Bible are infallible revelations from the Spirit. Nor will we let anyone tell us that interpretations of the bible must be accepted because the Holy Spirit revealed this to them."